List of the Paleozoic life of New York (state)

This list of the Paleozoic life of New York contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of New York and are between 538.8 and 252.17 million years of age.

A

 * †Acanthoclema
 * †Acanthoclema aspera
 * †Acanthoclema asperum
 * †Acanthoclymenia
 * †Acanthoclymenia genundewa
 * †Acanthoclymenia neapolitana
 * †Acanthocrinus
 * †Acanthocrinus spinosus
 * Conodonts00.jpg †[[Acanthodus]]
 * †Acanthodus uncinatus
 * †Acanthoparypha – tentative report
 * †Acanthoscapha
 * †Achatella
 * †Achatella achates
 * †Acheilops
 * †Acheilops masonensis
 * †Acidiphorus
 * †Acidiphorus whittingtoni
 * Acidiscus linedrawing.jpg †[[Acidiscus]]
 * †Acimetopus
 * †Acinophyllum
 * †Acinopteria
 * †Aclistocrinus
 * †Aclistocrinus capistratus
 * †Acodus
 * †Acodus similaris
 * †Acrogenia
 * †Acrospirifer
 * †Acrospirifer duodenaria
 * †Acrospirifer macrothyris
 * †Acrothele
 * †Acrotreta
 * †Actinoceras
 * †Actinoceras ruedemanni
 * †Actinoceras ruedemonni
 * †Actinoceras vertebratum
 * †Actinodesma
 * †Actinodesma erectum
 * †Actinophyllum
 * †Actinopterella
 * †Actinopteria
 * †Actinopteria boydi
 * †Actinopteria boydii
 * †Actinopteria decussata
 * †Actinopteria muricatus
 * †Actinopteria recumbant
 * †Actinopteria subdessucata
 * †Actinostromella
 * †Actinostromella vaiverensis
 * †Actinoxylon
 * †Actinoxylon banksii
 * †Aculeatarbus – type locality for genus
 * †Aculeatarbus depressus – type locality for species
 * The Eurypterida of New York plate 75.jpg †[[Acutiramus]]
 * †Acutiramus floweri – type locality for species
 * †Acutiramus macrophthalmus
 * †Adelphobolbina
 * †Adelphobolbina medialis – type locality for species
 * †Aechmina
 * †Aechminaria – tentative report
 * †Aesopomum
 * †Aglaeoglypta
 * †Aglaeoglypta koeneni
 * †Aglaeoglypta maera
 * †Aglaoglypta
 * †Aglaoglypta koeneni – type locality for species
 * †Aglaoglypta maera
 * †Agoniatites
 * †Agoniatites discoideus
 * †Agoniatites expansus
 * †Agoniatites nodiferus
 * Agraulos-ceticephalus-01.jpg †[[Agraulos]]
 * †Agraulos saratogensis
 * †Aknisophyllum – type locality for genus
 * †Aknisophyllum consuitum – type locality for species
 * †Alaionema
 * †Alaionema crenulatum
 * †Alanella
 * †Allanella
 * †Allanella tullia
 * †Allanella tullius
 * †Allenella
 * †Allenella tullia
 * †Allenella tullius
 * †Alleynia
 * †Alleynia americana
 * †Allotrioceras
 * †Allotrioceras bifurcatum
 * †Allumettoceras
 * †Allumettoceras giganteum
 * †Ambocoelia
 * †Ambocoelia gregaria
 * †Ambocoelia praeumbonata
 * †Ambocoelia umbonata
 * †Ambonychia
 * †Ambonychia praecursa
 * †Ambonychiopsis
 * †Ambonychiopsis curvata
 * †Amorphognathus
 * †Amorphognathus tvaerensis
 * †Amphicoelia
 * †Amphicoelia orbiculoides
 * †Amphicoelia ordiculoides
 * †Amphidoxodendron
 * †Amphidoxodendron dichotomum
 * †Amphigenia
 * †Amphigenia curta
 * †Amphigenia elongata
 * †Amphilicas
 * †Amphilicas cornutus
 * †Amphilichas
 * †Amphilichas minganensis
 * †Amphiocoelia
 * †Amphissella
 * †Amphissella papillosa – type locality for species
 * †Amphistrophia
 * †Amphistrophia striata
 * †Amphizona
 * †Amphizona asceta
 * †Amplexiphyllum
 * †Amplexiphyllum hamiltoniae
 * †Amplexograptus
 * Amplexopora petasifomis.jpg †[[Amplexopora]]
 * †Amplexopora minnesotensis
 * †Amplexopora winchelli
 * †Amplexus
 * †Amplexus hamiltoniae
 * †Analox
 * †Anamesocrinus
 * †Anamesocrinus lutheri
 * †Anamesocrinus spinobrachiatus – type locality for species
 * †Anastrophia
 * †Anastrophia brevirostris
 * †Anastrophia interplicata
 * †Anastrophia verneuili
 * †Anazyga
 * †Anazyga recurvirostra
 * †Anchiopsis
 * †Anchiopsis anchiops
 * †Ancillotoechia
 * †Ancillotoechia obtusiplicata
 * †Ancistrorhyncha
 * †Ancyrocrinus
 * †Ancyrocrinus bulbosus
 * †Aneurophyton
 * †Aneurophyton germanicum
 * †Aneurophyton hallii
 * †Aneurophyton rachides
 * †Aneurospora
 * †Aneurospora heterodontus – or unidentified comparable form
 * †Aneurospora semizonalis
 * †Anisotechnophorus
 * †Anisotechnophorus nuculitiformis – type locality for species
 * †Annoceras
 * †Annoceras costatum
 * †Annoceras multicameratum
 * †Anomalocystites
 * †Anomalocystites coronatus
 * †Anoplia
 * †Anoplia nucleata
 * †Anoplotheca
 * †Anostylostroma
 * †Anrangeroceras
 * †Anrangeroceras repens
 * †Anrangeroceras whitehallense
 * †Antholites
 * †Aorocrinus
 * †Aorocrinus formosus
 * †Aparchites
 * †Aparchites minutissimus
 * Cameroceras trentonese.jpg feeding on an Aphetoceras, while a quartet of Cyclostomiceras swim by]] †Aphetoceras''
 * †Aphetoceras attenuatum
 * †Aphetoceras farnsworthi
 * †Aphetoceras ruedemanni
 * †Aphyllopteris
 * †Aphyllopteris delwarensis
 * †Aphyllum
 * †Aphyllum fascicularium
 * †Apianurus
 * †Apianurus narrawayi
 * †Apiculiretusispora
 * †Apiculiretusispora brandtii
 * †Apiocystites
 * †Apiocystites elegans
 * †Apsidognathus
 * †Apsidognathus tuberculatus
 * †Arachnoxylon
 * †Arachnoxylon kopfi
 * †Archaeacarus – type locality for genus
 * †Archaeacarus dubinini – type locality for species
 * Archaeopteris reconstruction.jpg  †[[Archaeopteris]]
 * †Archaeopteris halliana
 * †Archaeopteris hibernica
 * †Archaeopteris macilenta
 * †Archaeopteris obtusa
 * †Archaeopteris sphenophyllifolia
 * †Archaeosigillaria
 * †Archaeosigillaria primaeva
 * †Archaeosigillaria vanuxemi
 * †Archaeosigillaria vanuxemii
 * †Archegonaspis
 * †Archinacella
 * †Archinacella deformata
 * †Archinacella magna – type locality for species
 * †Archinacella parva – type locality for species
 * †Archinacella proprius
 * †Archinacella pulaskiensis
 * †Archoceras – tentative report
 * Arctinurus boltoni.jpg †[[Arctinurus]]
 * †Arctinurus boltoni
 * †Arctinurus nereus
 * Argyrotheca
 * †Argyrotheca cuneata
 * †Arjamannia – tentative report
 * †Arthracantha
 * †Arthracantha ithacensis
 * †Arthroacantha
 * †Arthroacantha carpenteri
 * †Arthroclema
 * †Arthrophycus
 * †Arthrophycus alleganiensis
 * †Arthrophycus alleghaniensis
 * †Arthrostylus
 * †Arthrostylus tenius
 * †Asaphocinus
 * †Asaphocrinus
 * †Asaphocrinus ornatus
 * Asaphus latus frontal.jpg †[[Asaphus]]
 * †Asaphus alpha
 * †Asaphus beta
 * †Asaphus gamma
 * †Ascograptus
 * †Asinomphalus
 * †Asinomphalus antiqua
 * †Asperconella
 * †Asperconella gloriae – type locality for species
 * †Asperconella troyensis
 * †Aspidocrinus
 * †Asteropteris
 * †Asteropteris kopfi
 * †Astraeospongium
 * †Atactotoechus
 * †Atactotoechus acritus
 * †Atactotoechus kayi
 * †Atalacrinus
 * †Atalacrinus arctus
 * †Atelelasma
 * †Atelelasma multicosta
 * †Ateleocystites
 * †Ateleocystites balanoides
 * †Atelestrocrinus
 * †Athabaskiella
 * †Athroacantha
 * †Athyris
 * †Athyris angelica
 * †Athyris cora
 * †Athyris polita
 * †Athyris spiriferiodes
 * †Athyris spiriferoides
 * †Atlanticocoelia
 * †Atlanticocoelia acutiplicata
 * †Atopostroma
 * †Atops
 * †Atractocrinus
 * †Atractocrinus kopfi
 * †Atribonium
 * †Atribonium halli
 * †Atrypa
 * †Atrypa gibbosa
 * †Atrypa reticularis
 * †Atrypa rugosa
 * †Atrypina
 * †Atrypina diparilis
 * †Atrypina disparilis
 * †Atrypina rugosa
 * Attercopus fimbriunguis.jpg †[[Attercopus]]
 * †Attercopus fimbriunguis
 * †Attercopus fimbriungus
 * †Aulacognathus
 * †Aulacognathus latus
 * †Aulatornoceras
 * †Aulatornoceras auris
 * †Aulatornoceras eifliense
 * †Aulatornoceras paucistriatum
 * †Aulatornoceras rhysum
 * †Aulocystis
 * †Aulocystis commensalis
 * †Aulocystis cooperi
 * †Aulocystis dichotoma
 * †Aulocystis jacksoni
 * AuloporaDevonianSilicaShale.jpg †[[Aulopora]]
 * †Aulopora microbuccinata
 * †Aulopora schohariae
 * †Aulopora serpens
 * †Auroraspora – or unidentified comparable form
 * †Auroraspora macromanifestus
 * Avicula – tentative report
 * †Aviculopecten
 * †Aviculopecten ornatus

B

 * †Bactrites
 * †Bactrocrinites
 * †Bactrocrinites fieldi
 * †Bactrotheca – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Bactrotheca emmonsi
 * Bairdia
 * †Bairdia summacuminata
 * †Balbiniconcha
 * †Balbiniconcha hebe
 * †Baltagnostus
 * †Balticopora
 * †Balticopora tenuimurale
 * †Baltoceras
 * †Baltoceras pusillum – tentative report
 * †Barinophyton
 * †Barinophyton citrulliforme
 * †Barrandeoceras
 * †Barrandeoceras natator
 * †Barrandeophyllum
 * †Barrandeophyllum reimanni
 * †Barrandeophyllum simplex
 * †Barroisella
 * †Barroisella campbelli – or unidentified comparable form
 * †Barynema
 * †Barynema lirata
 * †Barynema multilirata
 * †Basidechenella
 * †Basidechenella rowi
 * †Basilicus
 * †Basilicus barrandi
 * †Basilicus whittingtoni
 * †Bassleridiscus – type locality for genus
 * †Bassleridiscus mohawkensis – type locality for species
 * †Bassleroceras
 * †Bassleroceras beekmanense
 * †Bassleroceras champlainense – type locality for species
 * †Bassleroceras kirbyi
 * †Bassleroceras microscopium
 * †Bassleroceras perseus
 * †Bassleroceras smithbasinense – type locality for species
 * †Bassleroceras spissiseptum
 * †Bassleroceras triangulum – type locality for species
 * †Bassleroceras vassarina – type locality for species
 * Bathydiscus linedrawing.jpg †[[Bathydiscus]]
 * †Bathyrellus
 * †Bathyrellus brevispinus
 * †Bathyurellus
 * †Bathyurellus platypus
 * †Bathyuriscidella
 * †Bathyuriscus
 * †Bathyurus
 * †Bathyurus extans
 * †Bathyurus longispinus
 * †Batostoma
 * †Batostoma campensis
 * †Batostoma chazyensis
 * †Batostoma lanensis
 * †Batostoma sheldonensis
 * †Batostomella
 * †Batostomella granulifera
 * †Beachia
 * †Beecherella
 * Bellacartwrigtia calliteles dorsal CRF.jpg †[[Bellacartwrightia]]
 * †Bellacartwrightia calliteles
 * †Bellacartwrightia phyllocaudata
 * †Bellefontia
 * †Bellefontia gyracantha
 * †Bellerophon
 * †Bellerophon helena
 * †Bellerophon pelops
 * †Bellerophon shelbiensis – type locality for species
 * †Belodina
 * †Bembexia
 * †Bembexia insolita – type locality for species
 * †Benthamaspis
 * †Benthamaspis striata – or unidentified comparable form
 * †Benthanyphyllum
 * †Bergstroemognathus
 * †Bergstroemognathus extensus
 * †Berounella
 * †Bertiella
 * †Bethanyphyllum
 * †Bethanyphyllum robustum
 * †Bethanyphyllum robustus
 * †Beyrichia
 * †Beyrichia lakemontensis – or unidentified related form
 * †Beyrichia veronica
 * †Bicia
 * †Bideirella
 * †Bideirella reticulata
 * †Bieberiana
 * †Bieberiana gowandense – type locality for species
 * †Billingsestraea
 * †Billingsestraea varneuili
 * †Bilobia
 * †Bilobia pisum
 * †Biornatispora
 * †Biornatispora dentata
 * †Biornatispora pseudospinosa
 * †Birdsallella
 * †Birdsallella catena – type locality for species
 * †Birdsallella devonica
 * †Blastoidocrinus
 * †Blastoidocrinus carchariaedens
 * †Blastoidocrinus expansa
 * †Blotherophyllum
 * †Blothrophyllum
 * †Blothrophyllum decorticatum
 * †Blothrophyllum promiseum
 * †Blothrophyllum promissum
 * †Bolaspidella
 * †Bolbocephalus
 * †Bolboparia
 * Bolboporites top view.jpg †[[Bolboporites]]
 * †Bolboporites americanus
 * †Bollia
 * †Bollia hindei
 * †Bonnia
 * †Botryllopora
 * †Botryllopora socialis
 * †Botryocrinus
 * †Botryocrinus reimanni
 * †Botsfordia
 * †Botsfordia caelata
 * †Boucotinskia
 * †Boucotinskia sulcata
 * †Boucotinskia sulcatus
 * †Bowmania
 * †Bowmania pennsylvanica – or unidentified comparable form
 * †Brachiocrinus
 * †Brachiocrinus nodosarius
 * †Brachyopterus
 * †Brachyprion
 * †Breenops
 * †Breenops boothi
 * †Breviphrentis
 * †Breviphrentis roemeri
 * †Breviphrentis variabilis
 * †Breviphrentis yandelli
 * †Briantelasma – type locality for genus
 * †Briantelasma americanum – type locality for species
 * †Briantelasma knoxboroense – type locality for species
 * †Briantelasma knoxboroensis
 * †Bucanella
 * †Bucania
 * †Bucania bellapuncta
 * †Bucania stigmosa
 * †Bucania sulcatina
 * †Bucanopsis
 * †Buchiola
 * †Buchiola retrostriata
 * †Buehleroceras
 * †Buehleroceras arcuatum
 * †Buehleroceras infundibulum
 * †Buehleroceras sinuatum
 * The Eurypterida of New York plate 23 cropped.jpg †[[Buffalopterus]]
 * †Buffalopterus pustulosus
 * †Bufina
 * †Bufina bicornuta
 * †Bumastoides
 * †Bumastoides aplatus
 * †Bumastoides gardenensis
 * †Bumastoides milleri
 * †Bumastus
 * †Bumastus ioxus
 * †Bunaia
 * †Buthograptus
 * †Buthograptus laxus
 * †Buthotrephis
 * †Buthotrephis gracilis
 * †Buthotrephis palmata
 * †Buthotrephis ramosa
 * †Byssonychia
 * †Byssonychia praecursa
 * †Byssonychia radiata
 * Bythocypris
 * †Bythocypris cylindrica
 * †Bythocypris lucasensis
 * †Bythocypris phaseoella – type locality for species
 * †Bythocypris subquadrata
 * †Bythocypris transptyxis – type locality for species
 * †Bythocypris tubercula – type locality for species
 * †Bythocyproidea
 * †Bythocyproidea eriensis – or unidentified comparable form
 * †Bythopora

C

 * †Cabrieroceras
 * †Cabrieroceras plebeiforme
 * †Cairoa
 * †Cairoa lamanekii
 * †Calacanthopora
 * †Calacanthopora senticosa
 * †Calamophyton
 * †Calamophyton bicephalum
 * †Calamopitys
 * †Calamopitys eupuncatata
 * †Calceocrinus
 * †Calceocrinus chrysalis
 * †Calliocrinus
 * †Callipleura
 * †Callipleura nobilis
 * †Callistocrinus
 * †Callistocrinus tesselatus
 * †Callixylon
 * †Callixylon erianum
 * †Callixylon petryi
 * †Callixylon Zalesskyi – or unidentified comparable form
 * †Callixylon zalesskyi
 * †Callocystites
 * †Callocystites jewetti
 * †Calodiscus
 * †Calodiscus lobatus
 * †Calvibembexia
 * †Calvibembexia sulcomarginata
 * †Calvinella – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Calvinella prethoparia
 * †Calymene
 * †Calymene clintoni
 * Calymenidae - Calymene niagarensis.JPG †[[Calymene niagarensis]]
 * †Calymenella
 * †Calymenella rostrata
 * †Calyptaulax
 * †Calyptaulax annulata
 * †Calyptaulax callicephalus
 * †Calyptosporites – or unidentified comparable form
 * †Calyptosporites velatus
 * †Camarotoechia
 * †Camarotoechia acinus
 * †Camarotoechia aequiradiata
 * †Camarotoechia altiplicata
 * †Camarotoechia billingsi
 * †Camarotoechia constricta
 * †Camarotoechia gongregata
 * †Camarotoechia humilis
 * †Camarotoechia litchfieldensis
 * †Camarotoechia navicella
 * †Camarotoechia neglecta
 * †Camarotoechia obtusiplicata
 * †Camarotoechia obtusplicata
 * †Camarotoechia pauciplicata
 * †Camarotoechia pristinus
 * †Camarotoechia robusta
 * †Camarotoechia saxatilis
 * †Camarotoechia saxatillis
 * †Camarotoechia semiplicata
 * †Camarotoechia tethys
 * †Camerella
 * †Camerella varians
 * †Camerella ventricosa
 * Cameroceras inaequabile fossil nautiloid, northern Kentucky.jpg †[[Cameroceras]]
 * †Cameroceras trentonense
 * †Campbelloceras
 * †Campbelloceras rotundum
 * †Caninia
 * †Caninia complexa
 * †Caninia tabulata
 * †Cannapora
 * †Cannapora junciformis
 * †Cannopora
 * †Cannopora junciformis
 * The Eurypterida of New York plate 37.jpg †[[Carcinosoma]]
 * †Carcinosoma scorpionis
 * †Carcinosoma spiniferus
 * †Cardiograptus
 * †Carinaropsis – type locality for genus
 * †Carinaropsis carinata – type locality for species
 * †Cariniferella
 * †Cariniferella carinata
 * †Cariniferella tioga
 * †Carinoceras
 * †Carinoceras vagans – type locality for species
 * †Carniodus
 * †Carniodus carnulus
 * †Carolinites
 * †Carolinites tasmanensis
 * †Cartersoceras
 * †Cartersoceras noveboracense – type locality for species
 * †Carydium
 * †Carydium bellistriata
 * †Carydium clarkei – type locality for species
 * †Carydium globularis
 * †Carydium varicosa
 * †Carydium varicosum
 * †Caryocaris
 * †Caryocrinites
 * †Caryocrinites ornatus
 * †Caseoceras
 * †Caseoceras obesum – type locality for species
 * Cassinoceras cropped.png †[[Cassinoceras]]
 * †Cassinoceras explanator
 * †Cassinoceras grande
 * †Cassowarioides
 * †Cassowarioides whitei – type locality for species
 * †Casteroceras
 * †Casteroceras alternatum
 * †Catatonocrinus
 * †Catatonocrinus halli
 * †Catazone
 * †Catazone nevadana – or unidentified comparable form
 * †Catazyga
 * †Catazyga erratica
 * †Catoraphiceras
 * †Catoraphiceras cushingi
 * †Caulopteris
 * †Caulopteris lockwoodi
 * †Caunopora
 * †Centroceras
 * †Centroceras marcellense
 * †Centrocyrtoceras
 * †Centrocyrtoceras mozolai
 * †Centronella
 * †Centronella gilboa
 * †Centronella glansfagea
 * †Centronella impressa
 * †Centronella lisbonensis
 * †Centrotarphyceras
 * †Centrotarphyceras imperator
 * †Centrotarphyceras seelyi
 * †Ceramopora
 * †Ceramopora imbricata
 * †Ceramopora imbriccata
 * †Ceramopora incrustans
 * †Ceramopora incrustus
 * †Ceramoporella
 * †Ceratiocaris
 * †Ceratocephala
 * †Ceratocephala triacantheis
 * †Ceratopea
 * †Ceratopea canadensis – type locality for species
 * †Ceratopea obtusa – type locality for species
 * †Ceratopora
 * †Ceraurinella
 * †Ceraurinella latipyga – type locality for species
 * Ceraurus fossil cropped.png †[[Ceraurus]]
 * †Ceraurus hudsoni
 * †Ceraurus pleurecanthemus
 * †Ceraurus pleurexanthemus
 * †Ceraurus pleuxanthemus
 * †Ceraurus polydorus
 * †Ceraurus pompilius
 * †Chaetetes
 * †Chaetetes lycoperdon
 * †Champlainopora
 * †Champlainopora chazyensis
 * †Chancelloria
 * †Chapinella – tentative report
 * †Charactocrinus
 * †Charactocrinus pustulosus
 * †Charionella
 * †Charionella ovata
 * †Charionella rostrata
 * †Charionoides
 * †Charionoides doris
 * †Chasmatopora
 * †Chasmatopora angulata
 * †Chasmatopora angulatum
 * †Chasmatopora asperatostriata
 * †Chasmatopora asperostriata
 * †Chazydictya
 * †Chazydictya chazyensis
 * †Chazyoceras
 * †Chazyoceras valcourense
 * †Cheiloceras
 * †Cheiloceras amblylobum
 * †Cheirocrinus
 * †Cheirocrinus anatiformis
 * Trilobite Ordovicien 8127.jpg †[[Cheirurus]]
 * †Cheirurus niagarensis
 * †Chilobolbina
 * †Chilobolbina hartfordensis
 * †Chilotrypa
 * †Chilotrypa ostiolata
 * †Chironiptrum – tentative report
 * †Chironiptrum arcuatum – type locality for species
 * †Chondrites
 * †Chonetes
 * †Chonetes cornutus
 * †Chonetes deflecta
 * †Chonetes ensicosta
 * †Chonetes filicostatus
 * †Chonetes hemisphericus
 * †Chonetes mucronatus
 * †Chonetes nectus – or unidentified comparable form
 * †Chonetes vicinus
 * †Chonophyllum
 * †Chonophyllum magnificus
 * †Chonostrophia
 * †Chonostrophia reversa
 * †Chonostrophiella
 * †Christiania
 * †Christiania trentonensis
 * †Chutoceras
 * †Chutoceras nundaium
 * †Cimitaria
 * †Cimitaria corrugata
 * †Cimitaria elongata
 * †Cimitaria recurva
 * †Cincinnaticrinus
 * †Cincinnaticrinus multibrachiatus
 * †Cincinnaticrinus varibrachialis
 * Cincinnetina meeki (Miller, 1875) slab 3.jpg †[[Cincinnetina]]
 * †Cincinnetina multisecta
 * †Cladochonus
 * †Cladochonus dichotoma
 * †Cladochonus jacksoni
 * †Cladopora
 * †Cladopora cervicornis
 * †Cladopora fibrosa – tentative report
 * †Cladopora multipora
 * †Cladopora reticulata
 * †Cladopora seriata
 * †Cladoxylon
 * †Cladoxylon dawsoni
 * †Cladoxylon hueberi
 * †Clarkecrinus
 * The Eurypterida of New York plate 46 cropped.jpg †[[Clarkeipterus]]
 * †Clarkeipterus testudineus – type locality for species
 * †Clarkoceras
 * †Clarkoceras rhomboidale
 * †Clarkoceras ruedemanni
 * †Clarkoceras trapezoidale
 * †Clathrodictyon
 * †Clathropora
 * †Clathropora alcicornis
 * †Clathropora frondosa
 * †Clathrospira
 * †Clathrospira euconica
 * †Clathrospira subconica
 * †Cleionychia
 * †Cleionychia marginalis
 * †Cleionychia montrealensis
 * †Cleionychia undata
 * †Clelandia
 * †Clelandia parabola
 * †Clidochirus
 * †Clidochirus schucherti
 * †Clidophorus
 * †Clidophorus obscurus
 * †Clidophorus planulatus
 * Climacograptus wilsoni Graptolite Fossils from Dob%27s Linn Scotland.jpg †[[Climacograptus]]
 * †Climacograptus typicalis
 * †Clintonella
 * †Clintonella vagabunda – or unidentified comparable form
 * †Clionlithes
 * †Clionolithes
 * †Clitambonites
 * †Clitambonites multicosta
 * †Clitendoceras
 * †Clitendoceras montrealense
 * †Clitendoceras saylesi
 * †Clorinda
 * †Clorinda fornicata
 * †Codaster
 * †Codaster pyramidatus
 * †Coeloclema
 * †Coeloclema cavernosum
 * †Coelonella
 * †Coelonella scapha
 * †Coelospira
 * †Coelospira camilla
 * †Coelospira dichotoma
 * †Coelospira hemispherica
 * †Coelospira plicatula
 * †Coelospira sulcata
 * †Coenites
 * †Coenostelodictyon
 * †Coenostelodictyon jewetti
 * †Coenostelodictyon krekovi – or unidentified comparable form
 * †Coenostroma
 * †Coenostroma monticuliferum – or unidentified comparable form
 * †Coleolus
 * †Coleolus aciculatum
 * †Coleolus camilla
 * †Coleolus crenatocinctum
 * †Coleolus tenuicinctum
 * †Coleolus tenuicinctus
 * †Colpodexylon
 * †Colpodexylon deatsii
 * †Colpodexylon trifurcatum
 * †Colpomya
 * †Colpomya faba
 * †Columnaria
 * †Compsocrinus
 * †Compsocrinus relictus
 * †Conchopeltis
 * †Conchopeltis alternata
 * †Conocardium
 * †Conocardium denticulatum – type locality for species
 * †Conocephalina
 * †Conocephalina whitehallensis – type locality for species
 * †Conocerina
 * †Conocerina reducta
 * †Conostichnus
 * †Conotheca
 * †Conotheca australiensis – type locality for species
 * †Conotreta
 * †Conotreta rusti – type locality for species
 * †Conularia
 * †Conularia longa
 * †Conularia niagarensis
 * †Conularia trentonensis
 * †Conularia triangularis
 * †Conularia triangulata
 * †Conularia undulata
 * †Conularid
 * Cooksonia pertoni.png †[[Cooksonia]]
 * †Cooksonia hemisphaerica – or unidentified comparable form
 * †Coolinia
 * †Coolinia subplana
 * †Coolinia tnuis
 * †Cordatomyonia
 * †Cordatomyonia shupei
 * †Cordylocrinus
 * †Cordylocrinus plumosus
 * †Cordylocrinus ramulosus
 * †Cordylodus
 * †Cordylodus angulatus
 * †Cordylodus caseyi
 * †Cordylodus proavus
 * †Cornellites
 * †Cornellites chemungensis
 * †Cornellites emaceratum
 * †Cornellites emaceratus
 * †Cornellites fasciculata
 * †Cornellites flabella
 * †Cornellites flabellum
 * †Cornellites flubella
 * Cornulites cellulosus.jpg †[[Cornulites]]
 * †Cornulites bellistriatus
 * †Cornulites distans
 * †Cornulites flexuosus
 * †Cornulites niagarensis
 * †Cornuproetus
 * †Cornuproetus beecheri
 * †Coronocrinus
 * †Coronocrinus polydactylus
 * †Corynexochides – tentative report
 * †Corynoides
 * †Corynotrypa
 * †Corynotrypa dissimilis
 * †Costalocrinus
 * †Costalocrinus rex – type locality for species
 * †Costalocrinus sentosus
 * †Costellirorstra
 * †Costellirorstra peculiaris – or unidentified comparable form
 * †Costellirostra
 * †Costellispirifer
 * †Costispirifer
 * †Costispirifer arenosa – or unidentified comparable form
 * †Costispirifer arenosus
 * †Costistricklandia
 * †Costistricklandia gaspeensis
 * †Costistricklandia lirata
 * †Costulatostyliolina
 * †Cotteroceras
 * †Cranaena
 * †Cranaena eudora
 * †Cranaena lincklaeni
 * †Cranaena linklaen
 * †Cranaena linklaeni
 * †Cranaena navicella
 * †Cranaena romingeri
 * †Cranaena subalobosa
 * Crania
 * †Crania crenistriata
 * Craniella arb.jpg [[Craniella]]
 * †Craniella hamiltoniae
 * †Craniops
 * †Craniops hamiltoniae
 * †Craniops linguiformis
 * †Craniops squammiformis
 * †Crassotornoceras
 * †Crassotornoceras crassum – or unidentified related form
 * †Crenistriella
 * †Crenistriella crenistria
 * †Crenistriella rotalinea
 * †Crickites
 * †Crickites lindneri
 * †Crinobrachiatus
 * †Crinobrachiatus brachiatus
 * †Crinoid
 * †Crinoid anchors
 * †Cristodus
 * †Cristodus loxoides
 * †Crownopora
 * †Crurispina
 * †Crurispina nana
 * †Crurispina spinosa
 * †Cryptograptus
 * †Cryptolithus
 * †Cryptolithus bellulus
 * †Cryptolithus lorettensis
 * †Cryptolithus tesselatus
 * †Cryptonella
 * †Cryptonella planirostra
 * †Cryptonella planirostrata
 * †Cryptonella rectirostra
 * †Cryptonella rectirostrata
 * †Cryptophyllus
 * †Cryptophyllus arsinius – type locality for species
 * †Ctenacaronychus – type locality for genus
 * †Ctenacaronychus nortoni – type locality for species
 * †Ctenocrinus
 * †Ctenocrinus nobilissimus
 * †Ctenocrinus pachydactylus
 * †Ctenocrinus stoloniferus
 * †Ctenodonta
 * †Ctenodonta bidorsata
 * †Ctenodonta dubia
 * †Ctenodonta dubiaformis
 * †Ctenodonta elliptica
 * †Ctenodonta lata
 * †Ctenodonta limbata
 * †Ctenodonta machaeriformis
 * †Ctenodonta mactriformis
 * †Ctenodonta peracuta
 * †Ctenodonta salinensis
 * †Ctenoloculina
 * †Ctenoloculina cicatricosa
 * †Ctenoloculina eurybathrota
 * The Eurypterida of New York plate 49.jpg †[[Ctenopterus]]
 * †Ctenopterus cestrotus
 * †Cuneamya
 * †Cuneamya alveata
 * †Cuneamya cuneata
 * †Cuneamya elliptica
 * †Cupularostrum
 * †Cupularostrum congregata
 * †Cupularostrum contracta
 * †Cupularostrum dotis
 * †Cupularostrum exima
 * †Cupularostrum eximia
 * †Cupularostrum horsfordi
 * †Cupularostrum orbicularis – tentative report
 * †Cupularostrum prolifica
 * †Cupularostrum stevensi
 * †Cupulocorona
 * †Cupulocorona gemmiformis
 * †Cupulocrinus
 * †Cupulocrinus gracilus
 * †Cupulorostrum
 * †Cupulorostrum congregata
 * †Cupulorostrum dotis
 * †Cupulorostrum horsfordi
 * †Cupulorostrum prolifica
 * †Cupulorostrum sappho
 * †Curtoceras
 * †Curtoceras eatoni
 * †Curtoceras internistriatum
 * †Cyathocylindrium
 * †Cyathodictya – tentative report
 * †Cyathophyllum
 * †Cybele
 * †Cybele prima
 * †Cybele primus
 * †Cybeloides
 * †Cybeloides prima
 * †Cyclonema
 * †Cyclonema cancellatum
 * †Cyclonema leptonotum
 * †Cyclonema varicasum
 * †Cyclonema varicosum
 * †Cyclora
 * †Cyclora subulata
 * †Cyclostomiceras
 * †Cyclostomiceras cassinense
 * †Cylindrophyllum
 * †Cymatonota
 * †Cymatonota raricosta
 * †Cymatonota undatum
 * †Cymostrophia
 * †Cymostrophia patersoni
 * Cyphaspis fossil cropped.png †[[Cyphaspis]]
 * †Cypricardella
 * †Cypricardella bellastriata
 * †Cypricardella bellistriata
 * †Cypricardella complana
 * †Cypricardella complanata
 * †Cypricardella complanatus
 * †Cypricardella crassa
 * †Cypricardella gregaria
 * †Cypricardella laroquei
 * †Cypricardella marylandica
 * †Cypricardella tenuistriata
 * †Cypricardella tenuistriatus
 * †Cypricardina
 * †Cypricardinea
 * †Cypricardinea indenta
 * †Cypricardinia
 * †Cypricardinia indenta
 * †Cypricardinia undulostriata
 * †Cypricordella
 * †Cypricordella tenuistriata
 * †Cyrtactinoceras
 * †Cyrtactinoceras boycii
 * †Cyrtactinoceras champlainense
 * †Cyrtia
 * †Cyrtia exporrecta
 * †Cyrtia meta
 * †Cyrtia pyramidalis
 * †Cyrtina
 * †Cyrtina dalmani – or unidentified comparable form
 * †Cyrtina hamiltonensis
 * †Cyrtina hamiltoniae
 * †Cyrtina pyramidalis
 * †Cyrtina recta
 * †Cyrtina rostrata
 * †Cyrtina varia – or unidentified comparable form
 * †Cyrtinoides
 * †Cyrtinoides eliei
 * †Cyrtobaltoceras
 * †Cyrtobaltoceras gracile
 * Cyrtoceras NT small.jpg †[[Cyrtoceras]]
 * †Cyrtoceras eugenium
 * †Cyrtoceras kirkbyi – tentative report
 * †Cyrtoceras subcancellatum
 * †Cyrtodonta
 * †Cyrtodonta alata
 * †Cyrtodonta scala
 * †Cyrtodonta solitaria
 * †Cyrtodontula
 * †Cyrtodontula ventricosa
 * †Cyrtolites
 * †Cyrtolites ornatus
 * †Cyrtolites pileolus
 * †Cyrtolites type locality for species – informal
 * †Cyrtonella
 * †Cyrtonella mitella
 * †Cyrtorizoceras
 * †Cyrtorizoceras rusti – type locality for species
 * †Cyrtospira
 * †Cyrtospira raymondi
 * Cyrtospirifer verneuili duo.jpg †[[Cyrtospirifer]]
 * †Cyrtospirifer alti
 * †Cyrtospirifer altiplicatus
 * †Cyrtospirifer augusticardinalis
 * †Cyrtospirifer chemungensis
 * †Cyrtospirifer cyrtiniformis
 * †Cyrtospirifer disjunctus
 * †Cyrtospirifer hornellensis
 * †Cyrtospirifer inermis
 * †Cyrtospirifer nucalis
 * †Cyrtospirifer preshoensis
 * †Cyrtospirifer sulcifer
 * †Cyrtospirifer vandermarkensis
 * †Cyrtospirifer whitneyi
 * †Cyrtostropha – type locality for genus
 * †Cyrtostropha macrospira
 * †Cyrtovaginoceras
 * †Cystiphylloides
 * †Cystiphylloides americanum
 * †Cystiphylloides confollis
 * †Cystiphylloides conifolis
 * †Cystiphylloides conifollis
 * †Cystiphylloides sulcatum
 * †Cystiphyllum
 * †Cystiphyllum niagarense
 * †Cystophylloides
 * †Cytarocrinus
 * †Cyttarocrinus
 * †Cyttarocrinus eriensis

D

 * †Dactylogonia
 * †Dactylogonia incrassata
 * Dadoxylon-chalala.jpg †[[Dadoxylon]]
 * †Dadoxylon halli – or unidentified comparable form
 * †Dakeoceras
 * †Dakeoceras champlainense – type locality for species
 * †Dakeoceras gracilis
 * †Dakeoceras harrisi – type locality for species
 * †Dalejina
 * †Dalejina hybrida
 * †Dalejina oblata – tentative report
 * †Dalmanella
 * †Dalmanella elegantula
 * †Dalmanella elgantula
 * †Dalmanella rogata
 * †Dalmanella whittakeri
 * SilurianTrilobite.jpg †[[Dalmanites]]
 * †Dalmanites limulurus
 * †Dalmanites litchfieldensis
 * †Dalmanitina
 * †Daonella
 * †Dapsilodus
 * †Dapsilodus mutatus
 * †Dawsonoceras
 * †Dawsonoceras americanum
 * †Dawsonoceras americanus
 * †Dawsonoceras annulatum
 * †Decadocrinus
 * †Decadocrinus multinodosus
 * †Decadocrinus ornatus
 * †Dechenella
 * †Dechenella macrocephalus
 * †Dechenella rowi
 * †Decoriconus
 * †Decoriconus fragilis
 * Deiphon forbesi cropped.png †[[Deiphon]]
 * †Dekayia
 * †Delphiceras
 * †Delphiceras cataphractum
 * †Deltacrinus
 * †Deltacrinus clarus
 * †Deltacrinus contractus
 * †Delthyris
 * †Deltoceras
 * †Deltoceras vaningeri
 * †Denayella
 * †Denayella rotalia
 * †Dendrocrinus
 * †Dendrocrinus alternatus
 * †Dendrocrinus aphelos
 * †Dendrocrinus bactronodosus
 * †Dendrocrinus longidactylus
 * †Dendrocrinus ursae
 * †Dendrocystites
 * †Dendrocystites paradoxocus
 * †Densastroma
 * †Densastroma pexisum
 * †Depasophyllum
 * †Depasophyllum tabulatum – type locality for species
 * †Desmograptus
 * †Devonacarus – type locality for genus
 * †Devonacarus sellnicki – type locality for species
 * †Devonaster
 * †Devonoblastus
 * †Devonoblastus leda
 * †Devonochonetes
 * †Devonochonetes coronatus
 * †Devonochonetes scitulus
 * †Diabolirhynchia
 * †Diabolirhynchia acinus – or unidentified comparable form
 * †Diabolirhynchus
 * †Diabolirhynchus acinus
 * †Diacanthaspis
 * †Diacanthaspis parvula
 * †Diamesopora
 * †Diamesopora dichotoma
 * †Diamesropora
 * †Diamesropora dichotoma
 * †Diaphelasma
 * †Diaphelasma oklahomense – or unidentified comparable form
 * †Diaphorastoma
 * †Diaphorodus
 * †Diaphorodus delicatus
 * †Dibolbina
 * †Dibolisporites
 * †Dibolisporites correctus – or unidentified comparable form
 * †Dicellograptus
 * †Dicoelosia
 * †Dicoelosia biloba
 * †Dicranella
 * †Dicranella bivertex
 * †Dicranograptus
 * †Dicranograptus nicholsoni
 * †Dicranopeltis
 * †Dicranopltus
 * †Dicranopltus nereus – or unidentified comparable form
 * †Dictyobembix
 * †Dictyobembix hebe – type locality for species
 * †Dictyonema
 * †Dictyonema gracile
 * †Dictyonema gracilis
 * †Dictyonema hamiltoniae
 * †Dictyonema retiforme
 * †Dictyonema subretiforme
 * †Dictyotomaria
 * †Dictyotomaria capillaria
 * †Dictyotomaria itylus – type locality for species
 * Didymograptus murchisoni small.jpg †[[Didymograptus]]
 * †Diestoceras
 * †Diestoceras sycon – type locality for species
 * †Dignomia
 * †Dignomia alveata
 * †Dikelocephalus
 * †Dikelocephalus hartti
 * †Dikelocephalus tribulus – type locality for species
 * †Dimerocrinites
 * †Dimerocrinites arborescens
 * †Dimerocrinites lilliformis
 * †Dimerocrinites lockportensis
 * †Dimerocrinus
 * †Dimerocrinus brachiatus
 * †Dimerocrinus liliiformis
 * †Dimeropyge
 * †Dimeropyge clintonensis
 * †Dinorthis
 * Dipleura dekayi 2.jpg †[[Dipleura]]
 * †Dipleura dekayi
 * †Diploclema
 * †Diploclema sparsum
 * †Diplograptus
 * †Diplophyllum
 * †Diplophyllum subcaespitosum
 * Discina
 * †Discina doria
 * †Discina minuta
 * †Discinella
 * †Discinella micans
 * †Discinocaris
 * †Discomyorthis
 * †Discomyorthis musculosa
 * †Discosorus
 * †Discosorus conoideus
 * †Disphyllum
 * †Disphyllum caespitosum
 * †Distacodus
 * †Distacodus falcatus
 * †Distomodus
 * †Distomodus staurognathoides
 * †Dizygopleura
 * †Dizygopleura intermedia
 * †Dizygopleura proutyi
 * †Dizygopleurella
 * †Dolatocrinus
 * †Dolatocrinus lirata
 * †Dolatocrinus liratus
 * †Dolatocrinus springeri – type locality for species
 * †Doleroides
 * †Dolerorthis
 * †Dolerorthis flabella
 * †Dolerorthis flabellites – or unidentified related form
 * †Dolichoharpes
 * The Eurypterida of New York plate 40.jpg †[[Dolichopterus]]
 * †Dolichopterus herkimerensis – type locality for species
 * †Dolichopterus jewetti – type locality for species
 * †Dolichopterus macocheirus
 * †Dolichopterus siluriceps
 * †Doraclatum
 * †Doraclatum compandium – type locality for species
 * †Douvillina
 * †Douvillina cayuta
 * †Douvillina inaequistriata
 * †Douvillina inequistriata
 * †Douvillina ineuistriata
 * †Douvillina inquistriata
 * †Dracochela – type locality for genus
 * †Dracochela deprehendor – type locality for species
 * †Drepanellina
 * †Drepanellina modesta
 * †Drepanoistodus
 * †Drepanoistodus concavus
 * †Drepanoistodus suberectus
 * Drepanophycus sp.jpg †[[Drepanophycus]]
 * †Drepanophycus colophyllus
 * †Drepanophycus gaspianus
 * †Drepanophycus spinaeformis
 * †Drepanophycus spinosus
 * †Drydenia
 * †Drydenia foliata
 * †Dwightoceras
 * †Dwightoceras dactyloides
 * †Dynamocrinus
 * †Dynamocrinus robustus
 * †Dyoidophragma
 * †Dyoidophragma polymorphum

E

 * †Eatonia
 * †Eatonia medalis
 * †Eatonia medialis
 * †Ecchosis – type locality for genus
 * †Ecchosis pulchribothrium – type locality for species
 * †Ecculiomphalus
 * †Ecculiomphalus fredericus
 * †Eccyliopterus
 * †Eccyliopterus kalmi
 * †Eccyliopterus vagrans
 * †Ecdyceras
 * †Ecdyceras sinuiferum
 * †Echinocaris
 * †Echinocoelia
 * †Echinocoelia ambocoelioides
 * †Echinocoelia ambocoeloides
 * †Echinolichas
 * †Echinolichas eriopus
 * †Ectenoceras
 * †Ectenocrinus
 * †Ectenocrinus simplex
 * †Ectenocrinus triangulus
 * †Ectenodesma
 * †Ectenolites
 * †Ectenolites clelandi
 * †Ectenolites curviseptatus
 * †Ectenolites extensus
 * †Ectenolites sinuatus
 * †Ectocycloceras
 * †Ectocycloceras cataline
 * †Ectocycloceras cato
 * †Edaphophyllum
 * †Eddya
 * †Eddya sullivanensis
 * †Edmondia (bivalve) – tentative report
 * †Edmondia philipi
 * †Edriocrinus
 * †Edriocrinus occidentalis
 * †Edriocrinus pociliformis
 * †Elasmonema
 * †Elasmonema lichas
 * [[File:Eldredgeops milleri, Middle Devonian, Silica Shale, Sylvania, Ohio, USA - Houston Museum of Natural Science - DSC01523.JPG|thumb|upright=0.653|Fossil of the Middle-Late Devonian trilobite Eldredgeops]] †[[Eldredgeops]]
 * †Eldredgeops rana
 * †Eleutherocrinus
 * †Elita
 * †Elita fimbriata
 * †Elita fimoriata
 * †Ellesmeroceras
 * †Ellesmeroceras inbricatum
 * †Ellesmeroceras indomitum
 * †Elliptocephala
 * †Elliptocephala asaphoides
 * †Elyta
 * †Elyta fimbriata
 * †Emanuella
 * †Emanuella subumbona
 * †Emmanuella
 * †Emmanuella subumbona
 * †Emmelezoe
 * †Emmelozoe
 * †Emmonsia
 * †Emphanisporites – tentative report
 * †Enallophrentis – tentative report
 * †Encrinaster
 * †Encrinurus
 * †Encrinurus ornatus
 * Endoceras.JPG †[[Endoceras]]
 * †Endoceras annuliferum
 * †Endoceras champlainense
 * †Endoceras hudsoni
 * †Endoceras magister
 * †Endoceras proteiforme
 * †Endoceras raymondi
 * †Endoceras tityrus
 * †Endodesma
 * †Endodesma tranceps
 * †Endophyllum
 * †Endophyllum ciurcai – type locality for species
 * †Enfieldia
 * †Enfieldia mutilata
 * †Ensiferites
 * †Ensiferites armatus
 * †Ensiferites bennetti
 * †Ensiferites delicatulus
 * †Ensiferites leptodactylus
 * †Ensiferites wattlesi
 * †Enterolasma
 * †Enterolasma calculum
 * †Enterolasma caliculum
 * †Enterolasma strictum
 * †Eoagnostus
 * †Eoagnostus acrorhachis – type locality for species
 * †Eoangyomphalus
 * †Eoangyomphalus peneglabra – type locality for species
 * †Eoarthropleura – type locality for genus
 * †Eobucania
 * †Eobucania subovatus – type locality for species
 * †Eocoelia
 * †Eocoelia hemisphaerica
 * †Eocoelia hemispherica
 * †Eocoelia intermedia
 * †Eocoelia sulcata
 * †Eodevonaria
 * †Eodevonaria acutiradiata
 * †Eodevonaria arcuata
 * †Eodevonaria gaspensis – or unidentified comparable form
 * †Eodevonaria hemispherica
 * †Eodictyonella (formerly Dictyonella)
 * †Eodictyonella coralifera
 * †Eohalysiocrinus
 * †Eohalysiocrinus caelatus
 * †Eohalysiocrinus typus
 * †Eoleperditia
 * †Eomyelodactylus
 * †Eomyelodactylus sparteus – type locality for species
 * †Eomyelodactylus spartus
 * †Eomyelodactylus uniformis – type locality for species
 * †Eoplectodonta
 * †Eoplectodonta transversalis
 * †Eopolychaetus
 * †Eorizoceras
 * †Eorizoceras platyceroides
 * †Eorudolfoceras
 * †Eorudolfoceras antiquum
 * †Eoschizodus
 * †Eoschizodus chemungensis
 * †Eoschuchertella
 * †Eoschuchertella arcotostriata
 * Eospermatopteris erianus.jpg]] †Eospermatopteris''
 * †Eospermatopteris erianus – tentative report
 * †Eospinatrypa
 * †Eospinatrypa nodostriata
 * †Eospirifer
 * †Eospirifer plicatula – or unidentified comparable form
 * †Eospirifer radiatus
 * †Eospongia
 * †Eospongia varians
 * †Eosyringothyris – or unidentified comparable form
 * †Eosyringothyris asper
 * †Eotripteroceras
 * †Eotripteroceras minutum
 * †Epitornoceras
 * †Epitornoceras mithracoides – or unidentified comparable form
 * †Epitornoceras peracutum
 * †Erdiotrypa
 * †Erdiotrypa striata
 * †Eremoceras
 * †Eremoceras expansum
 * †Eremoceras multicameratum
 * †Eremoceras teres
 * The Eurypterida of New York plate 82.jpg †[[Erettopterus]]
 * †Erettopterus globiceps
 * †Erettopterus grandis
 * †Erettopterus waylandsmithi – type locality for species
 * †Eridophyllum
 * †Eridophyllum gigas
 * †Eridophyllum subcaespitosum
 * †Eridotrypa
 * †Eridotrypa exigua
 * †Eridotrypa mutabilis
 * †Eridotrypa nutabilis
 * †Eridotrypa solida
 * †Eridotrypa striata
 * †Eridotrypella
 * †Eridotrypella striata – or unidentified comparable form
 * The Eurypterida of New York plate 20 cropped.jpg †[[Erieopterus]]
 * †Erieopterus microphthalmus
 * †Eroicaspira
 * †Eroicaspira bellicincta
 * †Erratencrinurus
 * †Erratencrinurus vigilans
 * †Escharopora
 * †Etymothyris
 * †Eucalyptocrinites
 * †Eucalyptocrinites caelatus
 * †Eucalyptocrinus
 * †Eucalyptocrinus caelatus
 * †Eucheirocrinus
 * †Euconia
 * †Euconia sinuata – type locality for species
 * †Euglyphella
 * †Euglyphella asapha – type locality for species
 * †Euglyphella deltella – type locality for species
 * †Euglyphella numismoides
 * †Eukloedenella
 * †Eumetabolotoechia
 * †Eumetabolotoechia multicostata
 * †Eunema
 * †Eunoa
 * †Euomphalus
 * †Euomphalus clymenoides
 * †Euomphalus fairchildi – type locality for species
 * †Euptychaspis
 * †Euptychaspis typicalis
 * †Eurychilina
 * †Eurychilina canadensis
 * †Eurychilina latimarginata
 * Eurypterus remipes 001.jpg †[[Eurypterus]]
 * †Eurypterus dekayi
 * †Eurypterus laculatus
 * †Eurypterus pittsfordensis
 * †Eurypterus remipes
 * †Eurystomites
 * †Eurystomites accelerans
 * †Eurystomites amplectens
 * †Eurystomites kelloggi
 * †Euryzone
 * †Euryzone arata
 * †Euryzone clausa
 * †Euryzone itys
 * †Eusarcus
 * †Euspirocrinus
 * †Euspirocrinus wolcottense
 * †Eutaxocrinus
 * †Eutaxocrinus ithacense
 * †Eutaxocrinus whiteavesi
 * †Exoclitendoceras – type locality for genus
 * †Exoclitendoceras rochdalense – type locality for species

F

 * †Fahraeusodus
 * †Fahraeusodus marathonensis
 * †Failleana
 * †Failleana limbata
 * †Falsipollex
 * †Falsipollex simplilobatus – type locality for species
 * †Fardenia
 * †Fardenia interstriata
 * FavositesOrdovicianIndiana.jpg †[[Favosites]]
 * †Favosites alpenensis
 * †Favosites arbuscula
 * †Favosites argus
 * †Favosites basalticus
 * †Favosites biloculi
 * †Favosites canadensis
 * †Favosites constrictus
 * †Favosites emmonsi
 * †Favosites epidermatus
 * †Favosites favosideus
 * †Favosites hamiltoniae
 * †Favosites helderbergensis
 * †Favosites helderbergiae
 * †Favosites hisingeri
 * †Favosites limitaris
 * †Favosites milne-edswardii
 * †Favosites milneedwardsii
 * †Favosites niagarensis
 * †Favosites nitella – tentative report
 * †Favosites parasiticus
 * †Favosites placenta
 * †Favosites pyriforme
 * †Favosites pyriformis
 * †Favosites tuberosa
 * †Favosites turbinata
 * †Favosites turbinatus
 * †Fenestella
 * †Fenestella elegans
 * †Fenestella emaciata
 * †Fenestella eumaciata
 * †Fenestella planiramosa
 * †Fenestella tenuis
 * †Fenestrellina
 * †Ferestromatopora – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Filogranites
 * †Filogranites booiji
 * †Fimbrispirifer
 * †Fimbrispirifer divaricata
 * †Fimbrispirifer divaricatus
 * †Finkelnburgia
 * †Fistulipora
 * †Fistulipora crustula
 * †Fistulipora laminata
 * †Fistulipora sphericus
 * †Fistulipora tuberculosa
 * †Fistulopora
 * †Fistulopora tuberculosa
 * †Flabellitesia
 * †Flabellitesia flabellites
 * †Fletcheria
 * †Fletcheria incerta
 * †Fletcheria incognita
 * †Fletcherina
 * †Fletcherina incognita
 * Flexicalymene-ouzregui-rolled.jpg †[[Flexicalymene]]
 * †Flexicalymene senaria
 * †Floripatella
 * †Floripatella irregularis
 * †Floweria
 * †Floweria arctostriata
 * †Floweria becraftensis
 * †Floweria chemungensis
 * †Floweria perversa
 * †Foersteoceras
 * †Foerstephyllum
 * †Foerstephyllum halli
 * †Foliaster
 * †Foliaster transversus
 * †Foordites
 * †Foordites buttsi – or unidentified comparable form
 * Fordilla troyensis.png †[[Fordilla]]
 * †Fremontoceras
 * †Fremontoceras jewetti
 * †Fusispira

G

 * †Garwoodia
 * †Garwoodia gregaria
 * †Gasconadia
 * †Gasconadia floridensis – type locality for species
 * †Gasconadia mohawkensis – type locality for species
 * †Gazacrinus
 * †Gazacrinus immaturus
 * Geisonoceratidae - Geisonoceras species.JPG †[[Geisonoceras]]
 * †Geisonoceras lineolatus
 * †Geisonoceras shumardi
 * †Geisonoceras tenuistriatum
 * †Geisonoceras tenuitextum
 * †Gelasinotarbus – type locality for genus
 * †Gelasinotarbus bifidus – type locality for species
 * †Gelasinotarbus bonamoae – type locality for species
 * †Gelasinotarbus fimbriunguis – type locality for species
 * †Gelasinotarbus heptops – type locality for species
 * †Gelasinotarbus reticulatus – type locality for species
 * †Gennaeocrinus
 * †Gennaeocrinus eucharis
 * Rhodocrinidae - Gilbertsocrinus tuberosus.JPG †[[Gilbertsocrinus]]
 * †Gilbertsocrinus alpenensis
 * †Gilbertsocrinus intersculptus – type locality for species
 * †Gilbertsocrinus rarispinus – type locality for species
 * †Gilbertsocrinus spinigerous
 * †Gilbertsocrinus spinigerus
 * †Gilboaphyton
 * †Gilboaphyton goldringiae
 * †Gilboarachne
 * †Gilboarachne griersoni – type locality for species
 * †Ginkgophyton
 * †Glaphurina
 * †Glaphurina lamottensis
 * †Glaphurus
 * †Glaphurus pustulatus
 * †Glaphurus pustulotus
 * †Glenisteroceras
 * †Glenisteroceras obscurum
 * †Glossites
 * †Glossites depressus
 * †Glossites nuculoides
 * †Glossograptus
 * †Glyptocardia
 * †Glyptocardia speciosa
 * Glyptocrinidae - Glyptocrinus decadactylus cropped.jpg †[[Glyptocrinus]]
 * †Glyptocystites
 * †Glyptocystites forbesi
 * †Glyptodesma
 * †Glyptograptus
 * †Glyptomena
 * †Glyptomena distans
 * †Glyptomena prisca
 * †Glyptorthis
 * †Glyptorthis bellarugosa
 * †Glyptorthis crispata
 * †Glyptorthis sulcata
 * †Glyptotomaria
 * †Glyptotomaria ciliata – type locality for species
 * †Glyptotomaria genundewa – type locality for species
 * Gyroceras cyclops Columbus Ls Devonian.JPG †[[Goldringia]]
 * †Goldringia trivolvis
 * †Gomphoceras
 * †Gomphocysstites
 * †Gomphocysstites tenax – or unidentified comparable form
 * †Gonatocaris
 * †Gondekia
 * †Gondekia lancifer
 * Goniatitidae - Goniatites species.JPG †[[Goniatites]]
 * †Gonioceras
 * †Gonioceras anceps
 * †Gonioceras brainerdi
 * †Gonioceras chaziense
 * †Gonioceras multiseptatum
 * †Gonioceras pameliense
 * †Gonioceras quadratum
 * †Goniograptus
 * †Goniophora
 * †Goniophora chemungensis
 * †Goniophora hamiltonensis
 * †Goniophora hamiltoniae
 * †Goniophora rugosa
 * †Goniophora truncata
 * †Goniophoria
 * †Goniophoria chemungensis
 * †Goniostropha
 * †Goniostropha extenuata
 * †Gosseletia
 * †Gosseletia triquetra
 * †Gothocrinus – tentative report
 * †Gothocrinus multibrachiatus
 * †Graciloceras
 * †Graciloceras longidomum
 * †Gramatodon
 * †Gramatodon chemungensis
 * †Gramatodon hamiltoniae
 * †Grammatodon
 * †Grammatodon hamiltoniae
 * †Grammysia
 * †Grammysia alveata
 * †Grammysia arcuata
 * †Grammysia bisulcata
 * †Grammysia elliptica
 * †Grammysia nodocosta
 * †Grammysia obsoleta
 * †Grammysia praecursor
 * †Grammysioidea
 * †Grammysioidea alveata
 * †Grammysioidea arcuata
 * †Grammysioidea constricta
 * †Grammysioidea elliptica – or unidentified comparable form
 * †Grammysioidea globosa
 * †Grammysioidea obsoleta
 * †Grammysioidea subarcuata
 * †Grammysoidea
 * †Grammysoidea arcuata
 * †Grammysoidea bisulcata
 * †Grammysoidea constricta
 * †Graptodictya
 * †Graptospongia
 * Greenops barberi roled in matrix cephalon.jpg †[[Greenops]]
 * †Greenops boothi
 * †Grinnellaspis
 * †Grinnellaspis marginiata – or unidentified comparable form
 * †Groomodiscus
 * †Groomodiscus calcifer – type locality for species
 * †Gypidula
 * †Gypidula coeymanensis
 * †Gyroceras
 * †Gyroceras paucinodum

H

 * †Habrostroma
 * †Habrostroma centrotum
 * †Habrostroma controtum
 * †Habrostroma microporum
 * †Hadrophyllum
 * †Hadrophyllum woodi
 * †Hagnocrinus
 * †Hagnocrinus corporiculus
 * †Haileyia
 * †Halkieria
 * †Hallinetes
 * †Hallinetes lineatus
 * †Hallinetes setigera
 * Stylonurus_BW.jpg †[[Hallipterus]]
 * †Hallipterus excelsior
 * †Halloceras
 * †Halloceras undulatum
 * †Hallograptus
 * †Hallopora
 * †Hallopora elegantula
 * †Halysites
 * †Halysites catenularia
 * †Hanaites
 * †Hanaites platus
 * †Hapsiphyllum
 * †Hapsiphyllum bifurcatum
 * †Haptocrinus
 * The Eurypterida of New York plate 69.jpg †[[Hardieopterus]]
 * †Hardieopterus myops
 * †Haskinsia
 * †Haskinsia colophylla
 * †Healdia
 * †Healdia arkonensis – or unidentified comparable form
 * †Hebetoceras
 * †Hebetoceras cylindriforme
 * †Hebetoceras mirandum
 * †Hedeina
 * †Hedeina eudora
 * †Hedeina macropleura
 * †Hedellara
 * †Hederella
 * †Helcionella
 * †Helcionella subrugosa
 * †Heliolites
 * †Heliolites elegans
 * †Heliolites pyriformis
 * †Heliolites spinipora – tentative report
 * †Heliomeroides
 * †Heliomeroides teres
 * †Heliophylloides
 * †Heliophylloides corniculum
 * Heliophyllum halli Bethany Center Centerfield 2.jpg †[[Heliophyllum]]
 * †Heliophyllum confluens
 * †Heliophyllum gemmatum
 * †Heliophyllum halli
 * †Helopora
 * †Helopora fragilis
 * †Helopora ragilis
 * †Hemiarges
 * †Hemiarges turneri
 * †Hemiaspis
 * †Hemicystites
 * †Hemicystites parasiticus
 * Dolichometopidae - Hemirhodon amplipyge.JPG †[[Hemirhodon]]
 * †Hennigopora
 * †Hepaticites
 * †Hepaticites devonicus
 * †Hercostrophia
 * †Hercostrophia subcamerata
 * †Hercynella
 * †Hercynella buffaloensis – or unidentified comparable form
 * †Hernodia
 * †Herrmannina
 * †Herrmannina alta
 * †Hertzina
 * †Hertzina elongata
 * †Hesperorthis
 * †Hesperorthis costalis
 * †Hesperorthis ignicula
 * †Heterocrinus
 * †Heterocrinus heterodactylus
 * †Heterophrentis
 * †Heterophrentis complanata
 * †Heterophrentis prolifica
 * †Heterophrentis simplex
 * †Heteroschisma
 * †Heteroschisma canadensis
 * †Hexameroceras
 * †Hexameroceras chadwicki – tentative report
 * †Hibbardia
 * †Hibbardia lacrimosa
 * †Hibbertia
 * †Hibbertia valcourensis
 * †Hindella
 * †Hindia
 * †Hipparionix
 * †Hipparionyx
 * †Hipparionyx proximus – or unidentified comparable form
 * †Hoareicardia
 * †Hoareicardia cunea
 * †Hollinella
 * †Hollinella ampulla – type locality for species
 * †Hollinella epakra – type locality for species
 * †Hollinella plauta
 * †Hollinella retusilobata – type locality for species
 * †Hollinella sella – type locality for species
 * †Hollinella tricollina
 * †Holocystites – tentative report
 * Holopeidae - Holopea praestans.JPG †[[Holopea]]
 * †Holopea obsoleta
 * †Holopea plauta
 * †Holopea plautus
 * †Holopea scrutator
 * †Homalonotus
 * †Homalonotus delphinocephalus
 * †Homalonotus dlephinocephalus
 * †Homalophyllum
 * †Homalophyllum exigum
 * †Homeospira
 * †Homeospira apriniformis
 * †Homocrinus
 * †Homocrinus parvus
 * †Homocystites
 * †Homocystites anatiformis
 * †Homoeospira
 * †Homoeospira apriniformis
 * †Homotrypa
 * †Homotrypa similis
 * †Hormotoma
 * †Hormotoma bilineata – type locality for species
 * †Hormotoma gracilis
 * †Hormotoma micula
 * †Hormotoma simplex
 * †Hormotoma sulcatum
 * †Hostinella
 * †Hostinella silurica
 * †Howellella
 * †Howellella crispa
 * †Howellella cycloptera – or unidentified comparable form
 * †Howellella cyclopterus
 * †Howellella vanuxemi
 * †Hudsonoceras
 * †Hudsonoceras aristos
 * The Eurypterida of New York plate 61.jpg †[[Hughmilleria]]
 * †Hughmilleria shawangunk
 * †Hughmilleria socialis
 * †Hungerfordia
 * †Hungerfordia dichotoma
 * †Hyattidina
 * †Hyattidina congesta
 * †Hyboaspis
 * †Hyboaspis depressa
 * †Hyenia
 * †Hyenia banksii
 * †Hyolithellus
 * †Hyolithellus micans
 * †Hyolithellus papillatus – type locality for species
 * Hyoliths01.JPG]] †Hyolithes''
 * †Hyolithes aclis
 * †Hyolithes americanus
 * †Hyolithes gibbosus
 * †Hypagnostus
 * †Hyperoblastus
 * †Hyperoblastus goldringae
 * †Hypodicranotus
 * †Hypodicranotus striatulus
 * †Hypothyridina
 * †Hypothyridina venestula
 * †Hypothyridina venustula
 * †Hysterolites
 * †Hysterolites perimele
 * †Hystricurus
 * †Hystricurus conicus – or unidentified comparable form
 * †Hystricurus ellipticus

I

 * †Ibyka
 * †Ibyka amphikoma
 * †Ichthyocrinus
 * †Ichthyocrinus laevis
 * †Icriodella
 * †Icriodella superba
 * †Icriodus
 * †Icriodus alternatus
 * †Icthyocrinus
 * †Icthyocrinus conoideus
 * †Icthyocrinus laevis
 * †Icthyocrinus subangulatus
 * †Idiospira – tentative report
 * †Idiospira longa – type locality for species
 * †Illaenoides
 * †Illaenus
 * †Illaenus incertus
 * †Illaenus punctatus
 * †Inocaulis
 * †Inocaulis aborescens
 * †Insolitotheca – type locality for genus
 * †Insolitotheca communis
 * †Intexodictyon
 * †Intexodictyon manliusense – type locality for species
 * [[File:Iocrinus subcrassus, crinoid, Late Ordovician, McMillan Formation, Butler County, Ohio, USA - Houston Museum of Natural Science - DSC01499.JPG|thumb|upright|Fossil of the Ordovician crinoid ("sea lily") Iocrinus]] †[[Iocrinus]]
 * †Iocrinus subcrassus
 * †Iocrinus trentonensis
 * †Iridistrophia
 * †Iridistrophia radiata – or unidentified comparable form
 * †Iridopteris
 * †Iridopteris eriensis
 * †Ischadites
 * †Ischadites planoconvexa
 * †Ischadites planoconvexum
 * †Ischadites planoconvexus
 * †Ischyrodonta
 * †Ischyrodonta unionoides
 * †Ischyrotoma
 * †Isochilina
 * †Isochilina labrosa
 * †Isograptus
 * †Isorthis
 * †Isorthis perelegans
 * †Isorthis proinqua
 * †Isorthis propinqua
 * †Isoteloides
 * †Isoteloides canalis
 * †Isoteloides peri
 * Isotelus brachycephalus.JPG †[[Isotelus]]
 * †Isotelus angusticaudum
 * †Isotelus bearsi
 * †Isotelus canalis
 * †Isotelus gigas
 * †Isotelus gingas
 * †Isotelus harrisi
 * †Isotelus obtusum
 * †Isotelus obtusus
 * †Isotelus simplex
 * †Isotelus walcotti
 * †Ithacadictya – type locality for genus
 * †Ithacadictya cornelli – type locality for species

J

 * †Janusella
 * †Jenningsina
 * †Jenningsina catenulata
 * †Joleaudella
 * †Joleaudella catilloides
 * †Jonesina
 * †Jonesina apoglypha – type locality for species
 * †Jordanopora
 * †Jordanopora heroensis

K

 * †Katabuporhynchus
 * †Katabuporhynchus mesacostalis
 * †Kawina
 * †Kawina chazyensis
 * †Keithiella
 * †Keraiaceras – tentative report
 * †Keraiaceras percostatum
 * †Keriaceras – tentative report
 * †Keriaceras percostatum
 * †Kiaeropterus
 * †Kiaeropterus otisius
 * Kionoceras doricum.JPG †[[Kionoceras]]
 * †Kionoceras cancellatum
 * †Kionoceras erraticum – type locality for species
 * †Kionoceras infrequens – type locality for species
 * †Kionoceras polyplicatum – type locality for species
 * †Kionoceras profundum
 * †Kionoceras valcourense – type locality for species
 * †Kirkbyella
 * †Kirkbyella tora – type locality for species
 * †Kirkbyella unicornis
 * †Kirkbyella verticalis
 * †Kitikamispira
 * †Kitikamispira concinna – type locality for species
 * †Kitikamispira hamiltoniae
 * †Kloedenella
 * †Kloedenia
 * †Knorria
 * †Knorria chemungensis
 * †Knoxiella
 * †Knoxiella reticulata – type locality for species
 * †Kockelella
 * †Kockelella ortus
 * †Kockelella ranuliformis
 * †Kockelella walliseri
 * †Koenenia
 * †Koenenia emarginata
 * †Koenenites
 * †Koenenites beckeri – type locality for species
 * †Koenenites cooperi
 * †Koenenites fasciculatus
 * †Koenenites styliophilus – type locality for species
 * †Kophinocrinus
 * †Kophinocrinus spiniferous
 * †Kophinocrinus spiniferus
 * †Kozlowskiellina
 * †Kozlowskiellina perlamellosa
 * †Kyphosocrinus
 * †Kyphosocrinus tetreaulti

L

 * †Labechia
 * †Labechia eatoni
 * †Labechia prima – type locality for species
 * †Labechia pustulosa – or unidentified comparable form
 * †Labechia valcourensis – type locality for species
 * †Lambeophyllum
 * †Lambeophyllum profundum
 * †Lamottoceras
 * †Lamottoceras franklini
 * †Lamottopora
 * †Lamottopora duncanae
 * †Lapworthella
 * †Lapworthella schodakensis
 * †Lasiocrinus
 * †Lasiocrinus scoparius
 * †Laurentoscandodus
 * †Laurentoscandodus triangularis
 * †Laurentoscandodus triangulatus
 * †Lawrenceoceras
 * †Lawrenceoceras breve
 * †Lawrenceoceras confertissimum
 * †Lecanocrinus
 * †Lecanocrinus macropetalus
 * †Lecanocrinus magnaradialis
 * †Lecanocrinus pusillus – or unidentified comparable form
 * †Lecanospira
 * †Lecanospira compacta
 * Leclercqia complexa cropped.jpg †[[Leclercqia (plant)|Leclercqia]]
 * †Leclercqia complexa
 * †Leidosigillaria – or unidentified comparable form
 * †Leioclema
 * †Leioclema aspera
 * †Leioclema asperum
 * †Leioclema confertiporum
 * †Leioclema decipiens
 * †Leioclema florida
 * †Leiocorphyge – tentative report
 * †Leiocorphyge lobata – type locality for species
 * †Leiocoryphe – tentative report
 * †Leiocoryphe lobata
 * †Leiopyge
 * †Leiorhynchus
 * †Leiorhynchus laura
 * †Leiorhynchus limitare
 * †Leiorhynchus limitaris
 * †Leiorhynchus mesacarina
 * †Leiorhynchus multicostum
 * †Leiorhynchus multiscostum – tentative report
 * †Leiorhynchus quadracostata
 * †Leiorhynchus quadracostatus
 * †Leiorhynchus quadricostatum
 * †Leiorhynchus sinuata
 * †Leiorhynchus sinuatum
 * †Leiorhynchus ventricosum
 * †Leperditia
 * †Leperditia alta
 * †Leperditia canadensis
 * †Leperditia fabulites
 * †Leperditia limatula
 * †Leperditia nana
 * †Leperditia scalaris
 * †Lepidocoleus
 * †Lepidocoleus jamesi
 * Stigmaria Heimans.jpg †[[Lepidodendron]]
 * †Lepidodendron chemungense
 * †Lepidosigillaria
 * †Lepidosigillaria whitei
 * †Lepocrinites
 * †Lepocrinites gebhardi
 * †Lepocrinites gebhardii
 * †Leptaean
 * †Leptaean rhomboidalis – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Leptaena
 * †Leptaena moniquensis
 * †Leptaena ordovicica
 * †Leptaena rhomboidalis
 * †Leptaenisca
 * †Leptobolus
 * †Leptobolus insigna
 * †Leptobolus insignis
 * †Leptochilodiscus
 * †Leptocoelia
 * †Leptocoelia flabellites
 * †Leptodesma
 * †Leptodesma bigsbyi
 * †Leptodesma billingsi
 * †Leptodesma clitus
 * †Leptodesma conradi
 * †Leptodesma dekayi
 * †Leptodesma extenuatum
 * †Leptodesma jason
 * †Leptodesma laevis
 * †Leptodesma lichas
 * †Leptodesma mathori
 * †Leptodesma mesacostalis
 * †Leptodesma mortoni
 * †Leptodesma naviforme
 * †Leptodesma nitida
 * †Leptodesma potens
 * †Leptodesma propinquum
 * †Leptodesma rafinesqui
 * †Leptodesma rhomboidea
 * †Leptodesma rhomboideum
 * †Leptodesma sayi
 * †Leptodesma spinerigum
 * †Leptodesma spinigerum
 * †Leptodesma striatula
 * †Leptodesma striatus
 * †Leptodesma subplana
 * †Leptodesma torregi
 * †Leptodesma waviformes
 * †Leptograptus
 * †Leptograptus annectans
 * Leptospira interrogans strain RGA 01.png †[[Leptospira]]
 * †Leptospira gibbosa
 * †Leptostrophia
 * †Leptostrophia beckii
 * †Leptostrophia bipartita
 * †Leptostrophia planulata
 * †Leptotrypella
 * †Leptotrypella amplectens
 * †Leptotrypella asterica
 * †Leptotrypella multitecta
 * †Levenea
 * †Levenea subcarinata
 * †Levenia
 * †Levenia lenticularis
 * Breviconic ellesmeroceridan.svg †[[Levisoceras]]
 * †Liacalymene
 * †Lichenalia
 * †Lichenalia concentrica
 * †Lichenocrinus
 * †Lidstroemella
 * †Lidstroemella aspidum
 * †Limoptera
 * †Limoptera macroptera
 * †Limuloides – tentative report
 * †Linguatornoceras
 * †Linguatornoceras linguum – or unidentified related form
 * †Linguella
 * †Linguella granvillensis – or unidentified comparable form
 * †Lingula
 * †Lingula allingi – type locality for species
 * †Lingula clintoni
 * †Lingula complanata
 * †Lingula curta
 * †Lingula densa
 * †Lingula desiderata
 * †Lingula lamellata
 * †Lingula oblata
 * †Lingula procne
 * †Lingula punctata
 * †Lingula riciniformis
 * †Lingula semina
 * †Lingula spatulata
 * †Lingula vicina
 * †Lingulapholis – tentative report
 * Lingulella caelata 1.png †[[Lingulella]]
 * †Lingulella brainerdi
 * †Lingulella columba
 * †Lingulella granvillensis
 * †Lingulella prima
 * †Lingulepis
 * †Lingulepis acuminata
 * †Linnarssonia
 * †Linoporella
 * †Liocalymene
 * †Liocalymene clintonensis
 * †Liocalymene clintoni
 * †Liocalymene niagarensis
 * †Liomphalus
 * †Liomphalus disjunctus
 * †Liospira
 * †Liospira americana
 * †Lobobactrites
 * †Lobobactrites clavus
 * †Lobotornoceras
 * †Lobotornoceras hassoni – or unidentified related form
 * †Loculipora
 * †Loculipora perforata
 * †Logocrinus
 * †Logocrinus geniculatus
 * †Lonchocephalus
 * †Lonchocephalus calciferus
 * Lonchodomas mcgeheei CRF.jpg †[[Lonchodomas]]
 * †Lonchodomas chaziensis
 * †Lonchodomas halli
 * †Longispina
 * †Longispina mucronata
 * †Longispina mucronatus
 * †Longstaffia
 * †Longstaffia pulchra
 * †Lophospira
 * †Lophospira billingsi
 * †Lophospira perangulata
 * †Lophospira rectistriata
 * †Lophospira ventricosa
 * †Loxodus
 * †Loxodus bransoni
 * †Loxonema
 * †Loxonema bertiense – tentative report
 * †Loxonema postremum
 * †Loxophragma
 * †Loxophragma lechrium
 * †Loxoplocus
 * †Loxoplocus gothlandicus – type locality for species
 * †Lucasella – tentative report
 * †Lucasella spinulifera
 * †Lunulacardium
 * †Lunulacardium curtum
 * †Lunulacardium marcellense
 * †Lunulacardium ornatum
 * †Luprisca – type locality for genus
 * †Luprisca incuba – type locality for species
 * †Lyriocrinus
 * †Lyriocrinus dactylus
 * †Lyriopecten
 * †Lyriopecten orbiculatus
 * †Lyrodesma
 * †Lyrodesma poststriatum

M

 * †Macgeea
 * †Macgeea ponderosa – type locality for species
 * †Machaeraria
 * †Mackinnonia
 * †Mackinnonia rostratum – type locality for species
 * †Mackinnonia taconica – type locality for species
 * †Macluritella
 * †Macluritella imperfecta – type locality for species
 * †Macluritella multiseptarius – type locality for species
 * †Macluritella uniangulata
 * †Maclurites
 * †Maclurites magnus
 * †Macrochilina
 * †Macrochilina pygmaea
 * †Macrochilina seneca
 * †Macrocoelia
 * †Macrocoelia champlainensis
 * †Macrocoelia ruedemanni
 * †Macropleura
 * †Macropleura eudora
 * †Macropleura macropleura
 * †Macrostylocrinus
 * †Macrostylocrinus fusibrachiatus
 * †Macrostylocrinus granulosus – or unidentified comparable form
 * †Macrostylocrinus ornatus
 * †Maeneceras
 * †Maeneceras acutolaterale – or unidentified related form
 * †Malocystites
 * †Malocystites emmonsi
 * †Malocystites murchisoni
 * †Manticeras
 * Gephuroceratidae - Manticoceras species.JPG †[[Manticoceras]]
 * †Manticoceras contractum
 * †Manticoceras lamed
 * †Manticoceras nodifer
 * †Manticoceras sinuosum
 * †Mariacrinus – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Mariacrinus stoloniferus
 * †Marsupiocrinus
 * †Marsupiocrinus tentaculatus
 * †Mastigobolbina
 * †Mastigobolbina clarkei
 * †Mastigobolbina decora
 * †Mastigobolbina incipiens
 * †Mastigobolbina lata
 * †Mastigobolbina punctata
 * †Mastigobolbina retifera
 * †Mastigobolbina trilobata
 * †Mastigobolbina trilobatus
 * †Mastigobolbina trilobita
 * †Mastigobolbina typus
 * †Mastigobolbina vanuxemi
 * †Mastigograptus
 * †Matherella – type locality for genus
 * †Matherella saratogensis
 * Matthevia cropped.jpg †[[Matthevia]]
 * †Mccluskiceras – type locality for genus
 * †Mccluskiceras comstockense – type locality for species
 * †Mclearnites
 * †Mcqueenoceras
 * †Mcqueenoceras jeffersonense – or unidentified related form
 * †Meadowtownella
 * †Meadowtownella trentonensis
 * †Mediospirifer
 * †Mediospirifer angustus
 * †Mediospirifer audaculus
 * †Mediospirifer mucronatus
 * †Medusaegraptus
 * †Medusaegraptus graminiformis
 * †Medusagraptus
 * †Megakozlowkiella
 * †Megakozlowkiella sculptilis
 * †Megakozlowskiella
 * †Megakozlowskiella perlamellosa – or unidentified comparable form
 * †Megakozlowskiella raricosta
 * †Megakozlowskiella sculptilis
 * †Megakozlowskiella sculptis
 * †Megambonia
 * †Megambonia aviculoidea
 * †Meganterella
 * †Meganterella finksi
 * †Megastrophia
 * †Megastrophia concava
 * †Megastrophia hemisphaerica
 * †Megastrophia hemispherica
 * †Megastrophia hemisphericus
 * †Megastrophia profunda
 * †Megastylia
 * †Megistocrinus
 * †Megistocrinus depressus
 * †Mellopegma – tentative report
 * †Mellopegma georginensis – tentative report
 * †Melocrinus
 * †Melocrinus ornatus – type locality for species
 * †Mendacella
 * †Meniscoceras
 * †Meniscoceras coronense
 * †Menoeidina
 * †Menoeidina multipuncata – type locality for species
 * †Menoeidina versicula – type locality for species
 * Meristella two views.png †[[Meristella]]
 * †Meristella arcuata
 * †Meristella barissi
 * †Meristella barrisi
 * †Meristella doris
 * †Meristella haskinsi
 * †Meristella laevis
 * †Meristella nasuta
 * †Meristella praenuntia
 * †Meristella princeps
 * †Meristella scitula
 * †Meristina
 * †Meristina nasuta
 * †Merocrinus
 * †Merocrinus corroboratus
 * †Merocrinus typus
 * †Mesocoelia
 * †Mesocoelia gregaria – or unidentified comparable form
 * †Mesodouvillina
 * †Mesodouvillina varistriata
 * †Mesoleptosrophia
 * †Mesoleptosrophia junia
 * †Mesoleptostrophia
 * †Mesoleptostrophia junia
 * †Mesopalaeaster – tentative report
 * †Mesopalaeaster lanceolatus
 * †Mesotrypa
 * †Mesotrypa numiformis
 * †Mesotrypa nummiformis
 * †Metabaltoceras – type locality for genus
 * †Metabaltoceras fusiforme – type locality for species
 * †Metaconularia
 * †Metaplasia
 * †Metaplasia minuta
 * †Metriophyllum
 * †Michelia
 * †Michelia whiteavesi – type locality for species
 * †Michelinia
 * †Michelinia stylopora
 * †Michelinoceras
 * †Michelinoceras aldenense
 * †Michelinoceras rigidum
 * †Microchilina
 * †Microcyclus
 * †Microdisca
 * †Micromitra
 * †Mictophyllum
 * †Mictophyllum orientalis – type locality for species
 * †Millardicurus
 * †Mimella
 * †Mimella borealis
 * †Mimella vulgaris
 * †Mirabiloceras
 * †Mirabiloceras multitubulatum
 * †Missisquoia
 * †Missisquoia typicalis
 * †Mitroceras
 * Mixopterus cropped.jpg †[[Mixopterus]]
 * †Mixopterus multispinosus
 * †Modiella
 * †Modiella pygmaea
 * †Modiodesma
 * †Modiodesma modiolare
 * †Modiolopsis
 * †Modiolopsis anodontoides
 * †Modiolopsis exanimis
 * †Modiolopsis fabaformis
 * †Modiolopsis modiolaris
 * †Modiolopsis orthoconcavus – type locality for species
 * †Modiolopsis ovata
 * †Modiolopsis subalata
 * †Modiolopsis subalatus
 * †Modiolopsis subcarinata
 * †Modiolopsis subcarinatus
 * †Modiomorpha
 * †Modiomorpha chemungensis
 * †Modiomorpha concentrica
 * †Modiomorpha mutiloides
 * †Modiomorpha mytiloides
 * †Modiomorpha pygmaea
 * †Modiomorpha quadrula
 * †Modiomorpha subalata
 * †Modiomorphia
 * †Modiomorphia alta
 * †Modiomorphia concentrica
 * †Modiomorphia mytiloides
 * †Monoceratina
 * †Monoceratina casei
 * †Monodechenella
 * †Monodechenella macrocephala
 * †Monodechenella macrocephalus
 * Spirograptus spiralis cropped.jpg †[[Monograptus]]
 * †Monograptus clintonensis
 * †Monotrypa
 * †Monotrypa benjamini
 * †Monotrypa osgoodensis – or unidentified comparable form
 * †Monotrypella
 * †Monotrypella abrupta – tentative report
 * †Monotrypella arbuscula – tentative report
 * †Montyoceras
 * †Montyoceras arcuatum
 * †Montyoceras curviseptatum
 * †Montyoceras titaniforme
 * †Moorea
 * †Morania
 * †Mourlonia
 * †Mourlonia filitexta
 * †Mourlonia plena
 * †Mourlonia rugulata
 * †Mourlonia subzona – type locality for species
 * †Mucopraeca
 * †Mucopraeca multicostata – type locality for species
 * Mucrospirifer mucronatus Silica Shale.JPG  †[[Mucrospirifer]]
 * †Mucrospirifer consobrinus
 * †Mucrospirifer mucronata
 * †Mucrospirifer mucronatus
 * †Mucrospirifer tulliensis
 * †Mucrospirifier
 * †Mucrospirifier mucronatus
 * †Mucrspirifer
 * †Mucrspirifer mucronatus
 * †Mulceodens
 * †Mulceodens eboraceus – type locality for species
 * †Multicostella
 * †Multicostella platys
 * †Murchisonia
 * †Murchisonia micula
 * †Murchisonia subulata
 * †Muscrospirifer
 * †Muscrospirifer mucronatus
 * †Myalina – tentative report
 * †Myalina newelli
 * †Myelodactylus
 * †Myelodactylus convolutus
 * †Myelodactylus linae
 * †Mytilarca
 * †Mytilarca mytiliformis
 * †Mytilarca oviformis
 * †Mytilops
 * †Mytilops praecedens

N

 * †Nanahughmilleria
 * †Nanahughmilleria clarkei
 * †Nanahughmilleria prominens
 * †Nanillaenus
 * †Nanillaenus americanus
 * †Nanno
 * †Nanno noveboracum
 * †Nanothyris
 * †Nanothyris subglobosa – or unidentified comparable form
 * †Naplesites
 * †Naplesites naplesense
 * †Naticonema
 * Neritopsidae - Naticopsis.JPG †[[Naticopsis]]
 * †Navispira – tentative report
 * †Nemagraptus
 * †Nematopora
 * †Nematopora ovalis
 * †Nematopora raripora
 * †Neoaxon
 * †Neokloedenella
 * †Neozaphrentis
 * †Nephriticeras
 * †Nephriticeras metula
 * †Nervostrophia
 * †Nervostrophia nervosa
 * †Nervostrophia plana
 * †Nervostrophia tulliensis
 * †Newportopora
 * †Newportopora typicalis
 * †Niagaracrinus
 * †Niagaracrinus kopfi
 * †Nicholsonella
 * †Nicholsonella florida
 * †Nieszkowskia – tentative report
 * †Nieszkowskia satyrus
 * †Nileoides
 * †Nileoides perkinsi
 * †Niobe
 * Noeggerathia expansa cropped.png †[[Noeggerathia]]
 * †Noeggerathia gilboensis
 * †Nowakia
 * †Nowakia otomari
 * †Nucleocrinus
 * †Nucleospira
 * †Nucleospira concinna
 * †Nucleospira pisiformis
 * †Nucleospira ventricosa
 * †Nucleospira ventricosta
 * Nucula
 * Nuculana
 * †Nucularca
 * †Nucularca lorrainensis
 * †Nucularca pectunculoides
 * †Nuculites
 * †Nuculites lamellata
 * †Nuculites nyassa
 * †Nuculites nyssa
 * †Nuculites oblongatus
 * †Nuculites scitulus
 * †Nuculites triqueter
 * †Nuculites triquiter
 * Acila cobboldiae.jpg †[[Nuculoidea]]
 * †Nuculoidea corbuliformis
 * †Nuculoidea deceptriformis – type locality for species
 * †Nuculoidea lirata
 * †Nyassa
 * †Nyassa arguata
 * †Nyassa arguta
 * †Nyassa dorsata
 * †Nybyoceras
 * †Nybyoceras cryptum
 * †Nylanderina
 * †Nylanderina goldringae

O

 * Obolella crassa cropped.png †[[Obolella]]
 * †Obolus
 * †Octonaria
 * †Octonaria bifurcata – type locality for species
 * †Odontocephalus
 * †Odontocephalus selenurus
 * †Odontochile
 * †Odontochile micrurus
 * Odontopleura ovata reconstruction.jpg †[[Odontopleura]]
 * †Oepikina
 * †Oepikodus
 * †Oepikodus communis
 * †Oistodus
 * †Oistodus eutyphus
 * †Oistodus venustus
 * †Olenellus
 * †Olenoides
 * †Omospira
 * †Omospira trentonensis
 * †Oncoceras
 * †Oncoceras constrictum
 * †Oncoceras pristinum
 * †Oncoceras subrectum
 * †Oneotodus – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Oneotodus cavus
 * †Onoceras
 * †Ontaria
 * †Onychoplecia
 * †Onychoplecia longirostris
 * †Oonoceras
 * †Oonoceras perkinsi
 * †Oonoceras seelyi
 * †Ophileta
 * †Ophileta discus – type locality for species
 * †Opsiconidion
 * †Opsiconidion praecursor – or unidentified comparable form
 * †Orbiculoidea
 * †Orbiculoidea lodensis
 * †Orbiculoidea lodiensis
 * †Orbiculoidea molina
 * †Orbiculoidea newberryi
 * †Orbiculoidea tenuistriata
 * †Orbiculoidea truncata
 * †Orbiculoidea vanuxemi – or unidentified comparable form
 * †Orbignyella
 * †Ordogeisonoceras
 * †Ordogeisonoceras amplicameratum
 * †Ormoceras
 * †Ormoceras centrale – type locality for species
 * †Ormoceras champlainense – type locality for species
 * †Ormoceras schohariae – type locality for species
 * †Orthambonites
 * †Orthambonites acutiplicatus
 * †Orthambonites exfoliata
 * †Orthidium
 * †Orthidium lamellosa
 * †Orthidium lamellosum
 * †Orthis
 * †Orthis flabellites
 * †Orthis lepidus
 * †Orthis perveta
 * †Orthis praeumbona
 * †Orthis punctostriata
 * †Orthis tenuidens
 * †Orthoceras
 * †Orthoceras abruptum
 * †Orthoceras aristides
 * †Orthoceras bassleri
 * †Orthoceras clavatum
 * †Orthoceras lativentrum
 * †Orthoceras lentum
 * †Orthoceras limulurus
 * †Orthoceras luxum
 * †Orthoceras missisquoi
 * †Orthoceras modestum
 * †Orthoceras multicameratum
 * †Orthoceras progressum
 * †Orthoceras rectiannulatum
 * †Orthoceras sayi
 * †Orthoceras vagum
 * †Orthoceras virgulatum
 * †Orthodesma
 * †Orthodesma curtum
 * †Orthodesma pulaskiense
 * †Orthograptus
 * †Orthograptus pageanus
 * †Orthograptus quadrimucronatus
 * †Orthograptus rivai
 * †Orthograptus ruedemanni
 * †Orthonota
 * †Orthonota carinata
 * †Orthonota parvula
 * †Orthonota undulata
 * †Orthonychia
 * †Orthonychia concavum
 * †Orthonychia conicum
 * †Orthonychia dentalium
 * †Orthospirifer
 * †Orthospirifer mesastrialis
 * †Orthospirifer mesastrialus
 * †Orthospirifer mesatrialis
 * †Orthostrophia
 * †Orthostrophia fasciata
 * †Orthotetes
 * †Otarion
 * †Otarion spinicaudatum
 * †Oulodus
 * †Oulodus petila
 * †Ovoceras
 * †Ozarkina
 * †Ozarkodina
 * †Ozarkodina confluens
 * †Ozarkodina hadra
 * †Ozarkodina polinclinata
 * †Ozarkodina sagitta

P

 * †Pachecdyceras
 * †Pachecdyceras murale
 * †Pachydicta
 * †Pachydicta crassa
 * †Pachydictya
 * †Pachydictya acuta
 * †Pachydictya crassa
 * †Pachydictya sheldonensis
 * †Pachyphyllum
 * †Pachyphyllum crassicostatum
 * †Pachyphyllum woodmani
 * †Pachystrophia – tentative report
 * †Pachystylostroma
 * †Pachystylostroma champlainense – type locality for species
 * †Pachystylostroma goodsellense
 * †Pachystylostroma vallum
 * [[File:Paciphacops claviger, Early Devonian, Wenban Limestone, Cortez Range, Nevada, USA - Houston Museum of Natural Science - DSC01635.JPG|thumb|upright=0.636|Fossil of the trilobite Paciphacops]] †[[Paciphacops]]
 * †Paciphacops logani
 * †Paedeumias
 * †Paeeumias
 * †Pagetides
 * †Pagetides elagans
 * †Pagodia
 * †Pagodia seelyi – type locality for species
 * †Palaeacmaea
 * †Palaeacmaea expansa – type locality for species
 * †Palaeacmaea typica
 * †Palaeactina
 * †Palaeaster
 * †Palaeaster niagarensis
 * †Palaeocapulus
 * †Palaeocapulus acutirostre
 * †Palaeocaris – tentative report
 * †Palaeocaris cuylerensis – type locality for species
 * †Palaeocyclus
 * †Palaeocyclus ratuloides
 * †Palaeocyclus rotuloides
 * †Palaeocystites
 * †Palaeocystites tenuiradiatus
 * †Palaeodictyota
 * †Palaeoglossa
 * †Palaeoglossa belli
 * †Palaeoglossa perovata
 * †Palaeoneilo
 * †Palaeoneilo angusta
 * †Palaeoneilo augusta
 * †Palaeoneilo bisulcata
 * †Palaeoneilo brevis
 * †Palaeoneilo congregata
 * †Palaeoneilo constricta
 * †Palaeoneilo contracta
 * †Palaeoneilo crassa
 * †Palaeoneilo elongata
 * †Palaeoneilo emarginata
 * †Palaeoneilo fecunda
 * †Palaeoneilo filosa
 * †Palaeoneilo maxima
 * †Palaeoneilo muta
 * †Palaeoneilo plana
 * †Palaeoneilo rudis
 * †Palaeoneilo tenuistriata
 * The Eurypterida of New York figure 84.jpg †[[Palaeophonus]]
 * †Palaeophonus osborni – type locality for species
 * †Palaeophycus
 * †Palaeophycus striatum
 * †Palaeophyllum
 * †Palaeophyllum multicaule
 * †Palaeopinna
 * †Palaeopinna flabellum
 * †Palaeosaccus
 * †Palaeosolen
 * †Palaeosolon
 * †Palaeosolon siliqui
 * †Palaeozygopleura
 * †Palaeozygopleura attenuata
 * †Palaeozygopleura delphicola
 * †Palaeozygopleura hamiltoniae
 * †Palaeozygopleura laxa – type locality for species
 * †Palaeozygopleura multiplicata – type locality for species
 * †Palaeozygopleura noe – type locality for species
 * †Palaeozygopleura sicula
 * †Palaeozygopleura styliola – type locality for species
 * †Palaeschara
 * †Palaeschara incrustans
 * †Palaozygopleura
 * †Palaozygopleura hamiltoniae
 * †Paleoclosterium
 * †Paleoclosterium leptum
 * †Paleocystites
 * †Paleocystites tenuiradiatus
 * †Paleodictyota
 * †Paleodidymoprium
 * †Paleodidymoprium didymum
 * †Paleooedogonium
 * †Paleooedogonium micrum
 * †Paleophycus
 * †Paleophycus striatum
 * †Paleozygopleura
 * †Paleozygopleura delphicola
 * †Paleschara
 * †Paleschara radiata
 * †Palmatolepis
 * †Palmatolepis triangularis
 * †Panderodus
 * †Panderodus panderi – or unidentified comparable form
 * †Panderodus unicostatus
 * †Panenka
 * †Panenka hero
 * †Panenka retusa
 * †Parabolbina
 * †Parabufina
 * †Parabufina convexa
 * †Parabufina subovalis
 * The Eurypterida of New York plate 32.jpg †[[Paracarcinosoma]]
 * †Paracarcinosoma scorpionis
 * †Paracardium
 * †Paracardium doris
 * †Paraceraurus
 * †Paraceraurus ruedemanni
 * †Paracolocrinus
 * †Paracolocrinus paradoxicus
 * †Paraconularia
 * †Paracyclas
 * †Paracyclas arguta
 * †Paracyclas devoniana
 * †Paracyclas elliptica
 * †Paracyclas lirata
 * †Paracyclas rowleyi
 * †Paracyclas rugosa
 * †Paracyclas tenuis
 * †Paradakeoceras
 * †Paradakeoceras minor
 * †Paradakeoceras planiventrum
 * †Paraechmina
 * †Paraechmina postica
 * †Paraechmina spinosa
 * †Paraendoceras
 * †Paraendoceras depressum – type locality for species
 * †Paraendoceras wappingerense – type locality for species
 * The Eurypterida of New York plate 22.jpg †[[Parahughmilleria]]
 * †Parahughmilleria maria
 * †Parallelodon
 * †Parallelodon hamiltoniae
 * †Parallelopora
 * †Parallelostroma
 * †Parallelostroma foveolatum
 * †Parallelostroma microporum – type locality for species
 * †Parapanderodus
 * †Parapanderodus striatus
 * †Paraparchites
 * †Paraparchites asymmetrica – type locality for species
 * †Paraplethopeltis
 * †Paraplethopeltis carinfera – type locality for species
 * †Paraschmidtella
 * †Paraschmidtella paralobata
 * †Paraserratodontus
 * †Paraserratodontus costatus
 * [[File:Paraspirifer bownockeri, pyritized brachiopods, Middle Devonian, Silica Shale, Lucas County, Ohio, USA - Houston Museum of Natural Science - DSC01732.JPG|thumb|upright=0.745|Assemblage of the Early-Middle Devonian brachiopod Paraspirifer]] †[[Paraspirifer]]
 * †Paraspirifer acuminatus
 * †Parastrophina
 * †Parazyga
 * †Parazyga hirsuta
 * †Parodiceras
 * †Parodiceras discoideum
 * †Paterula
 * †Paucicrura
 * †Paucicrura rogata
 * †Paupospira
 * †Paupospira bowdeni
 * †Pelagiella
 * †Pelagiella minutissima
 * †Pelagiella primaeva
 * †Pentagonia
 * †Pentagonia unisulcata
 * †Pentamerella
 * †Pentamerella arata
 * †Pentamerella aruta
 * †Pentamerella pavilionensis
 * †Pentamerella pavillionensis
 * †Pentamerella pericosta
 * †Pentamerella petoskyensis
 * †Pentamerus
 * †Pentamerus oblongus
 * †Pentamerus ovalis
 * †Periechocrinites
 * Periechecrinidae - Periechocrinus costatus.JPG †[[Periechocrinus]]
 * †Periechocrinus speciosus – or unidentified comparable form
 * †Periodon
 * †Periodon grandis
 * †Periodon primum
 * †Perissocrinus – type locality for genus
 * †Perissocrinus papillatus – type locality for species
 * †Peronopsis
 * †Peronopsis evansi – type locality for species
 * †Peronopsis primigenea – or unidentified comparable form
 * †Perotrilites
 * †Perotrilites conatus – or unidentified comparable form
 * †Petasotheca – type locality for genus
 * †Petasotheca minuta – type locality for species
 * †Petigurus
 * †Petigurus ellipticus – type locality for species
 * †Petrocrania
 * †Petrocrania hamiltoniae
 * †Petrocrania prona
 * Phacops rana.jpg]]  †Phacops''
 * †Phacops cristata
 * †Phacops triculcatus
 * †Phacops trisulcata
 * †Phacops trisulcatus
 * †Phaenopora
 * †Phaenopora clintoni
 * †Phaenopora constellata
 * †Phaenopora ensiformis
 * †Phaenopora explanata
 * †Phakelodus
 * †Phakelodus terashimai
 * †Phanerotrema
 * †Phanerotrema labrosa – type locality for species
 * †Pharciceras
 * †Pharciceras amplexum
 * †Phestia
 * †Phestia diversa
 * †Phestia rostellata
 * †Philhedra
 * †Phipidomella
 * †Phipidomella vanuxemi
 * †Phlyctiscapha
 * †Phlyctiscapha subovata
 * †Phoenixites
 * †Phoenixites concentricus
 * †Pholadella
 * †Pholadella radiata
 * †Pholadella radiatus
 * †Pholadomorpha
 * †Pholadomorpha pholadiformis
 * †Pholidops
 * †Pholidops linguloides
 * †Pholidops squamiformis
 * †Pholidops squammiformis
 * †Pholidostrophia
 * †Pholidostrophia nacrea
 * †Pholidostrophia ovata
 * †Phorocephala
 * †Phorocephala setoni
 * †Phragmoceras
 * †Phragmodus
 * †Phragmodus undatus
 * †Phragmolites
 * †Phragmolites compressus
 * †Phragmosphaera – type locality for genus
 * †Phragmosphaera incisus
 * †Phragmosphaera lyra – type locality for species
 * †Phragmosphaera natator
 * †Phragmosphaera triliratus – or unidentified comparable form
 * †Phthonia
 * †Phthonia cylindrica
 * Phyllograptidae - Phyllograptus species cropped.jpg †[[Phyllograptus]]
 * †Phylloporina
 * †Phylloporina asperatastriata
 * †Phylloporina asperatostriata
 * †Phylloporina asperostriata
 * †Phylloporina incepta
 * †Physemataspis
 * †Physemataspis insularis
 * †Pionoceras
 * †Pionoceras pomponium
 * †Pionoceras vokesi
 * †Pionodema
 * †Pisocrinus
 * †Pittsfordipterus
 * †Pittsfordipterus phelpsae
 * †Placentella
 * †Placentella elliptica – or unidentified comparable form
 * †Placoblastus
 * †Placoblastus lucina
 * †Plaesiomys
 * †Plaesiomys iphigenia
 * †Plaesiomys strophomenoides
 * †Platillaenus
 * †Platillaenus erastusi
 * PlatycerasLoganOhio.jpg †[[Platyceras]]
 * †Platyceras angulatum
 * †Platyceras argo
 * †Platyceras carinatum
 * †Platyceras desmatum
 * †Platyceras erectum
 * †Platyceras gebhardi
 * †Platyceras hemisphericum
 * †Platyceras lineata
 * †Platyceras lineatum
 * †Platyceras niagarense
 * †Platyceras niagarensis
 * †Platyceras rarispinum
 * †Platyceras reflexum
 * †Platyceras rictum
 * †Platyceras turbinata
 * †Platyceras unisulcata
 * †Platyceras ventricosum
 * †Platyceras ventricosus
 * †Platyorthis
 * †Platyorthis planoconvexa
 * †Platyrachella
 * †Platyrochella
 * PlatystrophiaOrdovician.jpg †[[Platystrophia]]
 * †Platystrophia biforata
 * †Platystrophia biforatus
 * †Platystrophia longicardinalis
 * †Platystrophia lynx
 * †Platystrophia robusta
 * †Playfordites
 * †Playfordites tripartitus – or unidentified comparable form
 * †Plectambonites
 * †Plectatrypa
 * †Plectatrypa nodostriata
 * †Plectoceras
 * †Plectoceras jason
 * †Plectoceras jasoni
 * †Plectodina
 * †Plectodonta
 * †Plectonotus
 * †Plectonotus boucoti
 * †Plectonotus trilobita
 * †Plectorthis
 * †Plectorthis exfoliata
 * †Plectostroma
 * †Plectostroma micum
 * †Plethobolbina
 * †Plethobolbina typicalis
 * †Plethopeltis
 * †Plethopeltis obtusus
 * †Plethorhyncha
 * †Plethorhynchia
 * †Plethorthis
 * †Plethospira
 * †Plethospira cassina – type locality for species
 * Pleurodictyum americanum Kashong.jpg †[[Pleurodictyum]]
 * †Pleurodictyum americanum
 * †Pleurodictyum convexa
 * †Pleurodictyum convexum
 * †Pleurodictyum cylindricum
 * †Pleurodictyum cylindricus
 * †Pleurodictyum dividua
 * †Pleurodictyum stylopora
 * †Pleuronotus
 * †Pleuronotus decewi
 * †Pleuronotus tioga – type locality for species
 * †Pleurorima
 * †Pleurorima kayseri – type locality for species
 * Pleurotomaria.jpg [[Pleurotomaria]]
 * †Pleurotomaria apicialis – type locality for species
 * †Plicanoplia
 * †Plicoplasia
 * †Plinthokonion – tentative report
 * †Plinthokonion psamminon – type locality for species
 * †Pliomerops
 * †Pliomerops canadensis
 * †Plumalina
 * †Podolella
 * †Pojetaconcha
 * †Pojetaconcha beecheri
 * †Pojetaia
 * †Pojetaia runnegari
 * †Poleumita
 * †Poleumita crenulata
 * †Poleumita vernonensis – type locality for species
 * Polygnathus Pa elements.png †[[Polygnathus]]
 * †Polygyrata
 * †Polygyrata hunterensis – type locality for species
 * †Polyplacognathus
 * †Polyplacognathus ramosa
 * †Polyplectella
 * †Polyplectella mira
 * †Polypora
 * †Polypora incepta
 * †Ponderodictya
 * †Ponderodictya punctulifera
 * †Ponticeras
 * †Ponticeras perlatum
 * †Pontobdellopsis
 * †Poteriocrinus
 * †Poteriocrinus dignatus
 * †Praecardium
 * †Praematuratropis – type locality for genus
 * †Praematuratropis ovatus – type locality for species
 * †Praewaagenoconcha
 * †Praewaagenoconcha speciosa
 * †Prasopora
 * †Prasopora lenticularis
 * †Prasopora sardesoni
 * †Prasopora similatrix
 * †Prasopora simulatrix
 * †Primaspis
 * †Primaspis crosotus
 * †Primaspis trentonensis
 * †Primitia
 * †Primitiella
 * †Primitiella unicornis
 * †Primitiopsis
 * †Primitiopsis punctulifera
 * †Prionothyris
 * †Prionothyris diobolaris
 * †Prismostylus
 * †Prismostylus fibratum
 * †Pristeroceras
 * †Pristeroceras timidum
 * †Probeloceras
 * †Probeloceras lutheri
 * †Probillingsites
 * †Probillingsites inflatus – type locality for species
 * †Prochorites
 * †Prochorites alveolatus
 * †Productella
 * †Productella arctirostrata
 * †Productella belanskii
 * †Productella boydii
 * †Productella callawayensis
 * †Productella dumosa
 * †Productella navicella
 * †Productella nevicella
 * †Productella perplana
 * †Productella rectispina
 * †Productella speciosa
 * †Productella spinulocosta
 * †Proendoceras
 * Proetus concinnus reconstruction cropped.png †[[Proetus (trilobite)|Proetus]]
 * †Proetus clarus
 * †Proetus corycocus
 * †Proetus corycoeus
 * †Proetus haldemani
 * †Proetus stokesi
 * †Prolixocrinus
 * †Prolixocrinus nodocaudis
 * †Promourlonia
 * †Promourlonia durhamensis
 * †Proplina
 * †Proplina cornutaformis
 * †Propora
 * †Prosaukia
 * †Prosaukia spinula
 * †Proscorpius – type locality for genus
 * †Proscorpius osborni – type locality for species
 * †Prosopeionum
 * †Prosopeionum plexum – type locality for species
 * †Prosseria
 * †Prosseria grandis
 * †Protaster
 * †Protaster stellifer
 * †Protaxocrinus
 * †Protaxocrinus annellus
 * †Proteoceras
 * †Proteoceras moniliforme
 * †Proteoceras perkinsi
 * †Proteokalon
 * †Proteokalon petryi
 * †Proterocameroceras
 * †Proterocameroceras brainerdi
 * †Prothyris
 * †Prothyris lanceolata
 * †Protocalyptraea – type locality for genus
 * †Protocalyptraea marshalli – type locality for species
 * †Protocalyptraea styliophila – type locality for species
 * †Protochthonius – type locality for genus
 * †Protochthonius gilboa – type locality for species
 * †Protocrisina
 * †Protocycloceras
 * †Protocycloceras catulus
 * †Protocycloceras furtivum
 * †Protocycloceras lamarcki
 * †Protocycloceras xerxes
 * †Protodouvillina
 * †Protodouvillina inequistrata
 * †Protodouvillina inequistriata
 * †Protokionoceras
 * †Protolepidodendron
 * †Protolepidodendron gilboense
 * †Protolepidodendron scharianum
 * †Protoleptostrophia
 * †Protoleptostrophia concava
 * †Protoleptostrophia lirella
 * †Protoleptostrophia perplana
 * †Protomegastrophia
 * †Protopanderodus
 * †Protoscolex
 * †Protozyga
 * †Proturritella
 * †Proturritella historicum
 * †Protypus
 * †Pseudaviculopecten
 * †Pseudaviculopecten fasciculatus
 * †Pseudaviculopecten princeps
 * †Pseudoatrypa
 * †Pseudoatrypa devoniana
 * †Pseudoatrypa entilformis
 * †Pseudoatrypta
 * †Pseudoatrypta devoniana – or unidentified comparable form
 * †Pseudoblothrophyllum
 * †Pseudoblothrophyllum arrectum
 * †Pseudoblothrophyllum helderbergicum
 * †Pseudoblothrophyllum helderbergium
 * †Pseudoblothrophyllum munnsvillium
 * †Pseudohornea
 * †Pseudohornea diffusa
 * †Pseudohornera
 * †Pseudohornera diffusa
 * †Pseudohydnoceras
 * †Pseudohydnoceras erraticum
 * †Pseudolingula
 * †Pseudolingula rectilateralis
 * Pseudoniscus aculeatus Origin of Vertebrates.png †[[Pseudoniscus]]
 * †Pseudooneotodus
 * †Pseudooneotodus bicornis
 * †Pseudoplagiothyra
 * †Pseudoplagiothyra praecursor
 * †Pseudosphaerexochus
 * †Pseudosphaerexochus approximus
 * †Pseudosphaerexochus satyrus
 * †Pseudosphaerexochus vulcanus
 * †Pseudosporochnus
 * †Pseudostictoporella
 * †Pseudostylodictyon
 * †Pseudostylodictyon lamottense
 * Psilophyton dawsonii-rev.jpg †[[Psilophyton]]
 * †Psilophyton grandis
 * †Pteracontiodus
 * †Pteracontiodus bransoni
 * †Pterina
 * †Pterina demissa
 * †Pterinea
 * †Pterinea emacerata
 * †Pterinea insueta
 * †Pterinea jordani – or unidentified comparable form
 * †Pterinea waylandsmithi – type locality for species
 * †Pterinopectan
 * †Pterinopectan undosus
 * †Pterinopectan vertumnus
 * †Pterinopecten
 * †Pterinopecten erectus
 * †Pterinopecten hermes
 * †Pterinopecten suborbicularis
 * †Pterinopecten vertumnus
 * †Pteriochaenia
 * †Pteriochaenia fragilis
 * †Pterochaenia
 * †Pterochaenia fragilis
 * †Pterospathodus
 * †Pterospathodus amorphognathoides
 * †Pterotheca
 * †Pterotheca expansa
 * Pterygotus anglicus reconstruction.jpg †[[Pterygotus]]
 * †Pterygotus cobbi
 * †Pterygotus juvensis
 * †Pterygotus monroensis
 * †Ptilodictya
 * †Ptilodictya plumea
 * †Ptilograptus
 * †Ptilonaster
 * †Ptilonaster princeps
 * †Ptiloporella
 * †Ptomatis
 * †Ptomatis patulus – type locality for species
 * †Ptomatis rudis
 * †Ptychagnostus
 * †Ptychagnostus elegans
 * †Ptychagnostus punctuosus
 * †Ptychaspis
 * †Ptychaspis speciosus
 * †Ptychocrinus
 * †Ptychocrinus medinensis
 * †Ptychodesma
 * †Ptychodesma knappianum
 * †Ptychomphalina
 * †Ptychomphalina lucina
 * Trilobites - Ptychoparia striata.JPG †[[Ptychoparia]]
 * †Ptychoparia matheri – type locality for species
 * †Ptychoparia minuta
 * †Ptychopteria
 * †Ptychopteria chemungensis
 * †Ptychopteria elongata
 * †Ptychopteria flabella
 * †Ptychopteria flabellum
 * †Ptychopteria mesacostalis
 * †Ptychopteria proto
 * †Ptychopteria subdecussata
 * †Ptychosphaera
 * †Ptychosphaera thalia
 * †Pugnoides
 * †Pugnoides pugnus
 * †Punctomosea
 * †Punctomosea cristata
 * †Punctoprimitia
 * †Punctoprimitia subaequalis
 * †Pustulatia
 * †Pustulatia pustulosa
 * †Pyrenmoeus
 * †Pyrenmoeus cuneatus
 * †Pyrenomoeus
 * †Pyrenomoeus cuneatus
 * †Pyrgopostibulla – type locality for genus
 * †Pyrgopostibulla belli – type locality for species
 * †Pyrocystites
 * †Pyronema

Q

 * †Quasillites
 * †Quasillites angulatus
 * †Quasillites subobliquus

R

 * †Radnoria
 * †Rafinesquina
 * †Rafinesquina alternata
 * †Rafinesquina deltoidea
 * †Rafinesquina mucronata
 * †Rafinesquina nasuta
 * †Rafinesquina obscura
 * †Rafinesquina praecursor
 * †Rafinesquina prestonensis
 * †Raphistoma
 * †Raphistoma stamineum
 * †Raphistoma striatum
 * †Raphistomina
 * †Raphistomina undulata
 * KimmswickOzoraMidOrdReceptaculitid.jpg †[[Receptaculites]]
 * †Receptaculites monticulatus – or unidentified related form
 * †Redstonia
 * †Redstonia knaeckei – type locality for species
 * †Reimannia
 * †Reimannia aldenense
 * †Reimannia aldenese
 * †Rellimia
 * †Rellimia thomsonii
 * †Remopleuridella – tentative report
 * †Remopleuridella obtusa
 * †Remopleurides
 * †Remopleurides canadensis
 * †Remopleuridiella – tentative report
 * †Remopleuridiella obtusa – type locality for species
 * †Rensselaeria
 * †Rensselaeria elongata – or unidentified comparable form
 * †Rensselaerina – tentative report
 * †Reptaria
 * †Reptaria stolonifera
 * †Resserella
 * †Resserella elegantula
 * †Reteocrinus
 * †Reteocrinus stellaris
 * †Reteograptus
 * †Reteporina
 * †Retichonetes
 * †Retichonetes obscurus – or unidentified related form
 * †Retichonetes setigerus
 * †Reticularia
 * †Reticularia bicastata
 * †Reticularia bicostata
 * †Reticularia biocostata
 * †Reticularograptus
 * †Reticularograptus retiforme
 * †Reticulograptus
 * †Reticulograptus retiforme
 * †Retiolites
 * †Retiolites geinitzianus
 * †Retiolites venosus
 * †Retispira
 * †Retispira leda
 * †Retispira otsego – type locality for species
 * †Retispira repertus – type locality for species
 * †Retusotriletes
 * †Retusotriletes goensis
 * †Retusotriletes rotundus
 * †Rhabdosporites
 * †Rhabdosporites langi
 * †Rhabdosporites langii
 * †Rhabdostropha
 * †Rhacophyton
 * †Rhacophyton ceratangium
 * †Rhinidictya
 * †Rhinidictya bryozoan
 * †Rhinidictya fenestrata
 * The Eurypterida of New York plate 36 cropped.png †[[Rhinocarcinosoma]]
 * †Rhinocarcinosoma cicerops
 * †Rhinopora
 * †Rhinopora tuberculosa
 * †Rhinopora verrucosa
 * †Rhinopora verrucus
 * †Rhipidomella
 * †Rhipidomella circulus
 * †Rhipidomella cyclas
 * †Rhipidomella hybrida
 * †Rhipidomella hybridia
 * †Rhipidomella leucosia
 * †Rhipidomella penelope
 * †Rhipidomella trigona
 * †Rhipidomella vanuxemi
 * †Rhipidomelloides
 * †Rhipidomelloides oblata
 * †Rhipidothyris
 * †Rhipidothyris lepida
 * †Rhipidothyris mulitplicata
 * †Rhipidothyris plicata
 * †Rhodesognathus
 * †Rhodesognathus elegans
 * †Rhombopora
 * †Rhombopora rhombifera
 * †Rhombotrypa
 * †Rhombotrypa spinulifera
 * †Rhymokalon
 * †Rhymokalon trichium
 * Rhynchonellidae - Rhynchonella species.JPG †[[Rhynchonella]]
 * †Rhynchonella bidens
 * †Rhynchonella bidentata
 * †Rhynchonella emacerata
 * †Rhynchonella formosa
 * †Rhynchospirina
 * †Rhynchotrema
 * †Rhynchotrema increbescens
 * †Rhynchotreta
 * †Rhynchotreta americana
 * †Rhynchotreta robusta
 * †Rhynidictya
 * †Rhynidictya fenestrata
 * †Rhyssochonetes
 * †Rhyssochonetes aurora
 * †Rhyssochonetes filicostatus
 * †Rhytimia
 * †Rhytimia buffaloensis – or unidentified comparable form
 * †Rhytimya
 * †Ribeiria
 * †Ribeiria taylori – type locality for species
 * †Richina
 * †Richina selenicristata – type locality for species
 * †Rimouskia
 * †Ripidiorhynchus – tentative report
 * †Robergiella
 * †Robergiella brevilingua – or unidentified comparable form
 * †Roemerella
 * †Roemerella grandis
 * †Romingeria
 * †Rominigeria
 * †Romnigeria
 * †Ropalonaria
 * †Rossodus
 * †Rossodus manitouensis
 * Rostricellula
 * †Rostricellula major
 * †Rostricellula plena
 * †Rostricellula pristina
 * †Roundyella – tentative report
 * †Roundyella concentrica – type locality for species
 * †Rudolfoceras
 * †Rudolfoceras cornuoryx
 * †Ruedemannia
 * †Ruedemannia lirata
 * †Ruedemannia trilix
 * †Ruedemannipterus
 * †Ruedemannipterus stylonuroides
 * RusophycusOrdovician.jpg †[[Rusophycus]]
 * †Rusophycus biloba
 * †Rusophycus pudicum
 * †Rusophycus subangulatum

S

 * †Saccarchites
 * †Saccocrinus
 * †Salopina
 * †Salopina type locality for species A – informal
 * †Sandbergeroceras
 * †Sandbergeroceras enfieldense – type locality for species
 * †Sandbergeroceras syngonum
 * †Sanguinolites
 * †Sanguinolites contractus
 * †Sanguinolites cuneatus
 * †Sanguinolites solenoides
 * †Sanguinolites tiogensis
 * †Sanguinolites truncatus
 * †Sapphicorhynchus
 * †Sapphicorhynchus sappho
 * †Saratogia
 * †Sawdonia
 * †Sawdonia ornata
 * †Scalites
 * †Scalites angulatus
 * †Scalpellodus
 * †Scalpellodus longipinnatus
 * †Scapanocrinus
 * †Scapanocrinus muricatus
 * †Scaptina
 * †Scaptina incuda – type locality for species
 * †Scendium
 * †Scendium pyramidale
 * Scenella.jpg †[[Scenella]]
 * †Scenella montrealensis
 * †Scenella pretensa
 * †Scenella robusta
 * †Scenophyllum
 * †Scenophyllum conigerum
 * †Schindewolfoceras
 * †Schindewolfoceras chemungense
 * †Schindewolfoceras equicostatum – or unidentified related form
 * †Schizambon
 * †Schizambon duplicimuratum
 * †Schizo (genus)
 * †Schizocrania
 * †Schizocrania filosa
 * †Schizocrinus
 * †Schizocrinus nodosus
 * †Schizodus
 * †Schizodus chemungensis
 * †Schizonema
 * †Schizopea
 * †Schizopea typica – type locality for species
 * †Schizophoria
 * †Schizophoria impressa
 * †Schizophoria mulistriata
 * †Schizophoria multistriata
 * †Schizophoria striatula
 * †Schizophoria tioga
 * †Schizophoria tulliensis
 * †Schizophoria with
 * †Schizopodium
 * †Schizopodium mummii
 * †Schizotreta
 * †Schizotreta tenuilamellata
 * †Schmidtella
 * †Schmidtella crassimarginata
 * †Schuchertella
 * †Schuchertella arctostriata
 * †Schuchertella arctostriatus
 * †Schuchertella elegans
 * †Schuchertella interstriata
 * †Schuchertella marylandica – or unidentified comparable form
 * †Schuchertella pandora
 * †Schuchertella parva
 * †Schuchertella subplana
 * †Schuchertella sulcifer
 * †Schuchertella tenuis
 * †Schuchertella woolworthanus
 * †Schuchetella
 * †Schuchetella arctostriatus
 * †Scolopodus
 * †Scolopodus insculptus
 * †Scutellum
 * †Scutellum niagarensis
 * †Scyphocrinites
 * †Seelyoceras
 * †Seelyoceras raei
 * †Semiacontiodus
 * †Semiacontiodus iowensis
 * †Semiacontiodus nogamii
 * †Semicoscinium
 * †Semicoscinium tenuiceps
 * Serpula
 * †Serpulites
 * †Serpulospira
 * †Serpulospira eboracensis – type locality for species
 * †Serpulospira laxus
 * †Serrodiscus
 * †Serrulacaulis
 * †Serrulacaulis furcatus
 * †Serulacaulis
 * †Serulacaulis furcatus
 * †Shumardia
 * Stanhope Tree - geograph.org.uk - 2531669.jpg †[[Sigillaria]]
 * †Sigillaria gilboensis
 * †Silurovelella – type locality for genus
 * †Silurovelella casteri – type locality for species
 * †Sinochonetes
 * †Sinochonetes lepidus
 * †Sinuites
 * †Sinuites cancellatus – type locality for species
 * †Sinuitina
 * †Sinuitina acutilira
 * †Sinuitina brevilineatus
 * †Sinuopea
 * †Sinuopea emminencis – type locality for species
 * †Sinuopea parva – type locality for species
 * †Siphonophrentis
 * †Siphonophrentis gigantea
 * †Siphonophretis
 * †Siphonophretis variabilis
 * †Skenidioides
 * †Skenidioides pyramidale
 * †Skenidioides pyramidalis
 * †Skenidium
 * †Skenidium insignis – or unidentified comparable form
 * †Skenidium pyramidale
 * †Skenidium pyramidalis
 * Slimonia NT small.jpg †[[Slimonia]]
 * †Solenopleura
 * †Solenopora
 * †Solenopora compacta
 * †Sowerbyella
 * †Sowerbyella curdvillensis
 * †Sowerbyella kayi
 * †Sowerbyella senaria
 * †Sowerbyella sericea
 * †Sowerbyella transversalis
 * †Spathella
 * †Spathella typica
 * †Spatiopora
 * †Spatiopora maculata
 * †Spatipora
 * †Spatipora maculata
 * Cheiruridae - Sphaerexochus mirus cropped.jpg †[[Sphaerexochus]]
 * †Sphaerexochus parvus
 * †Sphaerexochus valcourensis
 * †Sphaerocoryphe
 * †Sphaerocoryphe goodnovi
 * †Sphaerocoryphe robusta
 * †Sphaeromanticoceras
 * †Sphaeromanticoceras oxy
 * †Sphaeromanticoceras rhynchostomum
 * †Sphaeromanticoceras rickardi
 * †Sphaerospongia
 * †Sphaerospongia tessellata – or unidentified related form
 * †Sphenophragmus
 * †Sphenophragmus nanus
 * †Sphenosphaera
 * †Sphenosphaera fiscellostriata
 * †Sphenotreta
 * †Sphenotreta acutirostris
 * †Spinatrypa
 * †Spinatrypa hystrix
 * †Spinatrypa spinosa
 * †Spinocespitosus
 * †Spinocespitosus parallelus
 * †Spinocyrtia
 * †Spinocyrtia granulosa
 * †Spinocyrtia macbridei
 * †Spinocyrtia marcyi
 * †Spinocyrtina
 * †Spinocyrtina granulosa
 * †Spinoplasia
 * †Spinoplasia gaspensis – or unidentified comparable form
 * †Spinozonotriletes – tentative report
 * †Spinozonotriletes naumovii – or unidentified comparable form
 * †Spinulicosta
 * †Spinulicosta spinulicosta
 * †Spinulocosta
 * †Spinulocosta spinulocosta
 * †Spinyplatyceras
 * †Spinyplatyceras dumosum
 * †Spinyplatyceras fornicatum
 * Spirifer perlamosus pedunculate valve.jpg †[[Spirifer]]
 * †Spirifer anchiasper
 * †Spirifer anchiaspirifer
 * †Spirifer aroostookensis
 * †Spirifer crispatus
 * †Spirifer crispus
 * †Spirifer duodenarius
 * †Spirifer eudora
 * †Spirifer macra
 * †Spirifer macrothyris
 * †Spirifer macrus
 * †Spirifer marcyi
 * †Spirifer mesicostalis
 * †Spirifer mesistrialis
 * †Spirifer niagarensis
 * †Spirifer posterus
 * †Spirifer raricosta
 * †Spirifer repertus
 * †Spirifer sculptilis
 * †Spirifer subcuspidatus
 * †Spirifer sulcata
 * †Spirifer sulcatus
 * †Spirifer varicosa
 * †Spirifer varicosta
 * †Spirifer williamsi
 * †Spirobis
 * †Spirobus
 * †Spirodentalium – tentative report
 * †Spirophyton
 * Spirorhaphe Punta San García 01.JPG]] †Spiroraphe''
 * †Spiroraphe galtensis
 * Spirorbis
 * †Spirorbis laxa
 * †Spyroceras
 * †Spyroceras crotalum
 * †Spyroceras geneva
 * †Spyroceras nuntium
 * †Staurograptus
 * †Stegerhynchus
 * †Stegerhynchus acinus
 * †Stegerhynchus neglectum
 * †Stegerhynchus neglectus
 * †Stenokoleos
 * †Stenokoleos bifidus
 * †Stenokoleos holmesii
 * †Stenoloron
 * †Stenoloron areyi – type locality for species
 * †Stenopareia
 * †Stenopareia globosus
 * †Stenopora
 * †Stenopora fibrosa
 * †Stenopora patula
 * †Stenoscisma
 * †Stephanocrinus
 * †Stephanocrinus angulatus
 * †Stephanocrinus gemmiformis
 * †Stereolasma
 * †Stereolasma rectum
 * †Stereospyroceras
 * †Stereospyroceras clintoni
 * †Steriolasma
 * †Steriolasma rectum
 * †Steroolasma
 * †Steroolasma rectum
 * †Stewartophyllum
 * †Stewartophyllum intermittens
 * †Stictopora
 * †Stictopora blackensis
 * †Stictopora fenestrata
 * †Stictopora labyrintha
 * †Stictopora labyrinthica
 * †Stictoporella
 * †Stictotrypa
 * †Stictotrypa punctipora
 * †Stigmatella
 * †Stipatocrinus
 * Stomatopora
 * †Straelenia
 * †Straparolis
 * †Straparollina
 * †Straparollina hudsoni
 * †Straparollus
 * †Straparollus clymenioides
 * †Straparollus planodiscus
 * †Strataster
 * †Strataster maciverorum – type locality for species
 * †Streblocrinus – type locality for genus
 * †Streblocrinus brachiatus – type locality for species
 * †Strepsodiscus
 * †Strepsodiscus hoyti
 * †Streptelasma
 * †Streptelasma corniculum
 * †Strepulites
 * †Strepulites divectus – type locality for species
 * †Striacoceras
 * †Striacoceras typum
 * †Striatochonetes
 * †Striatochonetes flexuosus
 * †Striatochonetes flexuousus
 * †Striatochonetes setigera
 * †Striatochonetes setigerus
 * †Striatopora
 * †Striatopora flexuosa
 * †Striatostyliolina
 * †Stricklandia
 * †Strigigenalis
 * †Strigigenalis cassinensis
 * †Striispirifer
 * †Striispirifer niagarensis
 * †Strobeus
 * †Strobeus onondagaensis
 * †Stromatocerium
 * †Stromatocerium rugosum
 * †Stromatopora
 * †Stromatopora constellata
 * †Strophalosia
 * †Strophalosia truncata
 * †Stropheodonta
 * †Stropheodonta demissa
 * †Strophochonetes
 * †Strophochonetes cornutus
 * †Strophodonta
 * †Strophodonta demissa
 * Strophomena costellata brachial.jpg †[[Strophomena]]
 * †Strophomena acutiradiata
 * †Strophomena conradi
 * †Strophomena convexa
 * †Strophomena corrugata
 * †Strophomena crassa
 * †Strophomena deflecta
 * †Strophomena inaequistriata
 * †Strophomena incurvata
 * †Strophomena inequiradiata
 * †Strophomena iowensis
 * †Strophomena orthididea
 * †Strophomena pentagonia
 * †Strophomena profunda
 * †Strophomena subplana
 * †Strophoneila
 * †Strophoneila punctulifera
 * †Strophonella
 * †Strophonella ampla
 * †Strophonella headleyana – or unidentified comparable form
 * †Strophonella leavenworthana
 * †Strophonella patenta
 * †Strophonella punctulifera
 * †Strophonella striata
 * †Strophostylus
 * †Strophostylus cancellata
 * †Strophostylus fitchi – type locality for species
 * †Strophostylus rotundata – type locality for species
 * Stylaraea
 * †Stylaraea parva
 * †Stylioina
 * †Stylioina fissurella
 * †Styliolina
 * †Styliolina fissurella
 * †Styliolinid
 * †Stylonema
 * †Stylonema robusta – type locality for species
 * The Eurypterida of New York figure 70.jpg †[[Stylonurus]]
 * †Subligaculum
 * †Subligaculum aculeatus – type locality for species
 * †Subligaculum laciniosum
 * †Subretepora
 * †Subulites
 * †Subulites elongatus
 * †Subulites prolongata
 * †Suecoceras
 * †Suecoceras marcoui
 * †Sulcella
 * †Sulcella emicatusa – type locality for species
 * †Sulcoretepora
 * †Sulcoretepora inscissurata
 * †Sulcoretopera
 * †Sulcoretopora
 * †Sulcoretopora incisurata – or unidentified comparable form
 * †Svalbardia
 * †Svalbardia banksii
 * †Syaptocrinus
 * †Syaptocrinus nintius
 * †Symphysurina
 * †Symphysurina convexa
 * †Symphysurina myopia – type locality for species
 * †Synaptocrinus
 * †Synaptocrinus nuntius
 * †Synaptophyllum
 * †Synaptophyllum simcoense
 * †Synbathocrinus
 * †Synbathocrinus canandaigua
 * †Synphoria – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Synphoroides
 * †Synphoroides pleuroptyx
 * †Syringaxon
 * †Syringaxon rudis
 * Syringoporid.jpg †[[Syringopora]]

T

 * †Tabulophyllum
 * †Tabulophyllum orientale
 * Taeniocrada decheniana cropped.jpg Taeniocrada cropped.jpg]] †[[Taeniocrada]]''
 * †Taeniocrada stilesvillensis
 * †Taeniopora
 * †Taeniopora exigua
 * †Taineopora
 * †Taonurus
 * †Taonurus caudagalli
 * †Tarphyceras
 * †Tarphyceras clarkei
 * †Tarphyceras farnsworthi
 * †Tarphyceras multicameratum
 * †Technophorus
 * †Technophorus cancellatus – type locality for species
 * †Tellinopsis
 * †Tellinopsis subemarginata
 * †Tellinopsis subemargula
 * Tentaculitid041011.jpg †[[Tentaculites]]
 * †Tentaculites bellulus
 * †Tentaculites elongatus
 * †Tentaculites gracilis
 * †Tentaculites gyracanthus
 * †Tentaculites minutus
 * †Tentaculites scalariformis
 * †Tentaculites scaleriformis
 * †Tentaculites simmondsi
 * †Tentaculites spiculus
 * †Tetradium
 * †Tetradium cellulosum
 * †Tetranodoceras
 * †Tetranodoceras transversum
 * †Tetranota
 * †Tetranota bidorsata
 * †Tetrasacculus
 * †Tetrasacculus magnivelatus – or unidentified comparable form
 * †Tetrasacculus paeneteichus – type locality for species
 * Tetraxylopteris reposana sterile branches.svg †[[Tetraxylopteris]]
 * †Tetraxylopteris BR4
 * †Tetraxylopteris schmidtii
 * †Thaerocrinus
 * †Thaerocrinus crenatus
 * †Thalamocrinus
 * †Thaleops
 * †Thaleops longispina – type locality for species
 * †Thaleops ovata
 * †Thaleops punctata
 * †Thaleops raymondi
 * †Thamnopora
 * †Thamnoptychia
 * †Thamnoptychia limbata
 * †Thamnoptychia ornata
 * †Thamnoptychia romingeri
 * †Thiemella
 * †Thiemella danbyi
 * †Thiemella danybi
 * †Thiemella leonensis
 * †Thlipsurella – tentative report
 * †Thylacocrinus
 * †Thylacocrinus clarkei
 * †Tormosocrinus
 * †Tormosocrinus furberi
 * †Tornoceras
 * †Tornoceras arcuatum
 * †Tornoceras typum – or unidentified comparable form
 * †Tornoceras uniangulare
 * †Tremanotus
 * †Tremanotus angustata
 * †Tremanotus profundus – type locality for species
 * †Trematis
 * †Trematis terminalis
 * †Trematopora
 * †Trematopora tuberculata
 * †Trematopora tuberculosa
 * †Trematospira
 * †Trematospira camura
 * †Trematospira gibbosa
 * †Trematospira perforata – or unidentified comparable form
 * Triarthrus eatoni ventral cropped.jpg †[[Triarthrus]]
 * †Triarthrus becki
 * †Triarthrus eatoni
 * †Tricornina
 * †Triendoceras
 * †Triendoceras orthoseptatum
 * †Trigonodictya
 * †Trigonodictya acuta
 * †Trigonograptus
 * †Trigrammaria
 * †Triloboxylon
 * †Triloboxylon arnoldii
 * †Triloboxylon ashlandicum
 * †Trimerus
 * †Trimerus delphinocephalus
 * †Triplesia
 * †Tripteroceras
 * †Tripteroceras cariniferum – type locality for species
 * †Tritonophon
 * †Tritonophon trilobatus
 * Gasteropods - Ammonites - Trochoceras regale.JPG †[[Trochoceras]]
 * †Trocholites
 * †Trocholites ammonius
 * †Trocholites gracilis
 * †Trocholites ruedemanni
 * †Trochonema
 * †Trochonema dispar
 * †Trochonema rectangularis
 * †Trochonemella
 * †Trochonemella knoxvillensis
 * †Tropidocoryphe
 * †Tropidocoryphe richterorum – type locality for species
 * †Tropidodiscus
 * †Tropidodiscus curvilineatus
 * †Tropidoleptus
 * †Tropidoleptus carinatus
 * †Tropodus
 * †Tropodus comptus
 * †Truncalosia
 * †Truncalosia truncata
 * †Truyolsoceras
 * †Truyolsoceras bicostatum – type locality for species
 * Tryblidium reticulatum 3.jpg. Head region is to the left.]] †Tryblidium''
 * †Tryplasma
 * †Tryplasma fascicularium – type locality for species
 * †Tubulibairdia
 * †Tubulibairdia windomensis
 * †Tullypothyridina
 * †Tullypothyridina venestula
 * †Tylothyris
 * †Tylothyris clarksvillensis
 * †Tylothyris mesa
 * †Tylothyris mesacostalis
 * †Tylothyris mesicostalis
 * †Tylothyris novamexicana
 * †Tylothyris pauliformis
 * †Tyserella
 * †Tyserella pauliformis
 * †Tytthocrinus
 * †Tytthocrinus arcarius – type locality for species

U

 * †Ulrichia
 * †Ulrichia acricula
 * †Ulrichia fragilis
 * †Ulrichia illinearis
 * †Ulrichia spinifera
 * †Ulrichia ventura – type locality for species
 * †Ulrichodina
 * †Ulrichodina abnormalis
 * †Ulrichostylus
 * †Uncinulus
 * †Uncinulus abruptus
 * †Uncinulus mutabilis
 * †Uncinulus nucleolatus
 * †Uncinulus pyramidatus
 * †Unitrypa
 * †Uromystrum
 * †Uromystrum brevispinum
 * †Uromystrum minor

V

 * †Vaginoceras
 * †Vaginoceras oppletum
 * †Valcourea
 * †Valcourea strophomenoides
 * †Valcouroceras
 * †Valcouroceras bovinum
 * †Valcouroceras cyclops
 * †Valcouroceras elongatum – type locality for species
 * †Valcouroceras obesum
 * †Valcouroceras tenuiseptum
 * †Vaningenoceras
 * †Vaningenoceras indomitum
 * †Vaningenoceras styliforme
 * †Vanuxemia
 * †Vanuxemia limbata
 * †Variabiloconus
 * †Variabiloconus bassleri
 * †Variabiloconus lineatus
 * †Vassaroceras
 * †Vassaroceras henrietta – type locality for species
 * †Velibeyrichia
 * †Vermiforafacta
 * †Vermiforafacta rollinsi
 * †Vermiforichnus
 * †Vermiforichnus clarkei
 * †Vernonaspis
 * †Vertumnia
 * †Vertumnia reversa
 * †Vetupraeca
 * †Vetupraeca duplicata
 * †Vetupraeca vetusta – type locality for species
 * †Viriatellina
 * †Vogdesia
 * †Vogdesia bearsi
 * †Vogdesia obtusus

W

 * Waeringopterus head 3.png †[[Waeringopterus]]
 * †Waeringopterus cumberlandicus
 * †Waeringopterus vernonensis
 * †Walcottoceras
 * †Walliserodus
 * †Walliserodus sancticlairi
 * †Warrenella
 * †Warrenella laevis
 * †Warrenella magna
 * †Wellsites
 * †Wellsites tynani
 * †Wellsites williamsi – type locality for species
 * †Whidbornella
 * †Whidbornella hirsuta
 * †Whidbornella lachrymosa
 * †Whiteavsia
 * †Whiteavsia expansa
 * †Whiteavsia undata
 * †Whitfieldella
 * †Whitfieldella cylindrica
 * †Whitfieldella intermedia
 * †Whitfieldella naviformis
 * †Whitfieldella naviormis
 * †Whitfieldella nitida
 * †Whitfieldella oblata
 * †Whitfieldia – tentative report
 * †Whitfieldoceras
 * †Whitfieldoceras lenticontractum – type locality for species
 * †Wurmiella
 * †Wurmiella excavata

X

 * †Xenocladia
 * †Xenocladia medullosina
 * †Xystostrophia
 * †Xystostrophia woolworthana

Y

 * Yochelcionella cyrano.JPG †[[Yochelcionella]]
 * †Yochelcionella greenlandica
 * †Yochelsonella – type locality for genus
 * †Yochelsonella compressa – type locality for species
 * †Yorba

Z

 * †Zaphrenthis
 * †Zaphrenthis bilateralis
 * †Zaphrenthis turbinata
 * †Zittelloceras
 * †Zittelloceras praecedens – type locality for species
 * ZoophycosMississippian.jpg †[[Zoophycos]]
 * †Zostocrinus
 * †Zostocrinus ornatus
 * †Zygobolba
 * †Zygobolba crta
 * †Zygobolba curta
 * †Zygobolba decora
 * †Zygobolba elongata – tentative report
 * †Zygobolba excavata
 * †Zygobolba inflata
 * †Zygobolba intermedia
 * †Zygobolba oblonga
 * †Zygobolba prolixa
 * †Zygobolba rectangula
 * †Zygobolba robusta
 * †Zygobolbina
 * †Zygobolbina conradi
 * †Zygosella
 * †Zygosella vallata – or unidentified comparable form
 * †Zygospira
 * †Zygospira modesta