List of the Mesozoic life of Alaska

This list of the Mesozoic life of Alaska contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alaska and are between 252.17 and 66 million years of age.

A

 * Acila
 * †Actinoceramus
 * †Actinoceramus concentricus
 * †Actinoceramus sulcatus
 * Alaskacephale gangloffi copia.jpg †[[Alaskacephale]] – type locality for genus
 * †Alaskacephale gangloffi – type locality for species
 * †Allocotidus – type locality for genus
 * †Allocotidus bruesi – type locality for species
 * †Alpinophyllia
 * †Alpinophyllia flexuosa
 * †Amaltheus
 * †Amblydactylus
 * †Amblysiphonella
 * †Amoeboceras
 * †Ampakabastraea
 * †Ampakabastraea cowichanensis
 * †Ampakabastraea nodosa – or unidentified comparable form
 * Amusium
 * †Anagaudryceras
 * †Anagaudryceras auranium
 * †Anagaudryceras aurarium
 * †Anagaudryceras inflatus
 * †Anagaudryceras sacya – type locality for species
 * Anapachydiscus wittekindi.JPG †[[Anapachydiscus]]
 * †Anapachydiscus nelchinensis – type locality for species
 * †Anatomites
 * †Anatomites externiplicatus
 * †Anatomites septentrionalis – type locality for species
 * †Andangularia
 * †Andangularia wilsoni – type locality for species
 * †Anomia
 * †Anoptychia – tentative report
 * †Anthostylis
 * †Anthostylis acanthophora
 * †Antiquilima – tentative report
 * †Aopullina – tentative report
 * †Aquilapollenites
 * †Aquilapollenites decorus
 * †Aquilapollenites fusiformis
 * †Aquilapollenites quadrilobus
 * †Aquilapollenites reticulatus
 * †Aquilapollenites scabridus
 * †Arcestes
 * †Archaeocidaris – tentative report
 * †Archaeodictyomitra
 * †Archaeodictyomitra exigua – type locality for species
 * †Archaeospongoprunum
 * †Archaeospongoprunum helense – type locality for species
 * †Arcthoplites
 * †Arcthoplites belli
 * †Arcthoplites talkeetnanus
 * Arctica – tentative report
 * Arcticoceras.jpg †[[Arcticoceras]]
 * †Arctocephalites
 * †Arctocephalites alticostus
 * †Arctocephalites costidensus – type locality for species
 * †Arctocephalites pompeckji
 * †Arctoceras
 * †Arctoceras blomstrandi
 * †Arctoceras tuberculatum
 * †Arctoceras tuberculatus
 * †Arctopteris
 * †Arctopteris kolymensis – or unidentified related form
 * †Arctopteris rarinervis
 * †Areaseris
 * †Areaseris nevadensis
 * †Arieticeras
 * †Arieticeras domarense – or unidentified related form
 * [[File:Arnioceras acuticarinatu - Naturhistorisches Museum, Braunschweig, Germany - DSC05129 cropped.jpg|thumb|upright=0.724|Fossilized shell of the Early Jurassic ammonoid cephalopod Arnioceras]] †[[Arnioceras]]
 * †Arnioceras arnouldi – or unidentified comparable form
 * †Arpadites – tentative report
 * †Aspenites
 * †Aspenites acutus
 * Astarte
 * †Astarte carlottensis
 * †Asthenoceras
 * †Asthenoceras nannodes – or unidentified related form
 * †Astraeomorpha
 * †Astraeomorpha confusa
 * †Astraeomorpha crassisepta
 * †Astrocoenia – tentative report
 * †Atractites
 * †Atreta
 * †Aucella
 * †Aucella okensis
 * †Aucella spitiensis
 * †Aucella subokensis
 * †Aucellina
 * Avicula
 * †Avicula soperi
 * Aviculopecten subcardiformis01.JPG †[[Aviculopecten]]
 * †Azonia
 * †Azonia cribrata
 * †Azonia pulchella
 * †Azonia strictiparva

B

 * Baculites grandis shell.JPG  †[[Baculites]]
 * †Baculites occidentalis
 * †Badouxia
 * †Badouxia canadensis
 * †Badouxia columbiae
 * †Bathysiphon
 * †Belemnites
 * †Betraccium
 * †Betraccium perilense – or unidentified related form
 * †Bipedis
 * †Bipedis acrostylus
 * †Biplica
 * †Birisia
 * †Birisia alata
 * †Birisia ochotica
 * †Birisia oerstedtii – or unidentified comparable form
 * †Bisulcocypridea
 * †Bositra
 * †Bositra buchi – or unidentified comparable form
 * †Bradfordia
 * †Bradfordia oppeliiformis – type locality for species
 * †Brewericeras
 * †Brewericeras breweri
 * †Brewericeras hulenense
 * †Brewericeras hulense – or unidentified comparable form
 * †Buchia
 * †Buchia bronni – or unidentified comparable form
 * †Buchia concentrica
 * †Buchia crassicolis
 * †Buchia crassicollis
 * †Buchia fischeriana – or unidentified related form
 * †Buchia keyserlingi
 * †Buchia mosquensis
 * †Buchia pacifica
 * †Buchia pallasi – or unidentified comparable form
 * †Buchia piochii
 * †Buchia rugosa
 * †Buchia solida
 * †Buchia sublaevis
 * †Bullatimorphites
 * †Bullatimorphites varicostatum – type locality for species

C

 * Cardioceratidae - Cadoceras elatmae.JPG †[[Cadoceras]]
 * †Cadoceras bathomphalum – type locality for species
 * †Cadoceras catostoma
 * †Cadoceras chinitnense – type locality for species
 * †Cadoceras comma – type locality for species
 * †Cadoceras crassicostatum – type locality for species
 * †Cadoceras doroschini
 * †Cadoceras glabrum – type locality for species
 * †Cadoceras grewingki
 * †Cadoceras kialagvikense – type locality for species
 * †Cadoceras petelini
 * †Cadoceras schmidti
 * †Cadoceras tenuicostatum – type locality for species
 * †Cadoceras wosnessenskii
 * Phylloceratidae - Calliphylloceras spadae.JPG †[[Calliphylloceras]]
 * †Calliphylloceras aldersoni – or unidentified comparable form
 * †Calliphylloceras freibrocki – type locality for species
 * †Calliphylloceras nizinanum – type locality for species
 * †Callistopollenites
 * †Callistopollenites radiostriatus
 * †Callizoniceras
 * †Callospiriferina
 * †Callospiriferina tumida
 * †Calycoceras
 * †Camptonectes
 * †Camptonectes dettermani
 * †Canadoceras
 * †Canadoceras kossmati – or unidentified comparable form
 * †Canadoceras newberryanum
 * †Canadoceras yokoyamai
 * †Candonopsis – tentative report
 * †Canutus – tentative report
 * †Canutus ingrahamensis
 * †Capnuchosphaera
 * †Capnuchosphaera deweveri – or unidentified related form
 * †Capnuchosphaera lenticulata – or unidentified related form
 * †Capnuchosphaera mexicana
 * †Capnuchosphaera schenki
 * †Capnuchosphaera smithorum
 * †Capnuchosphaera theoloides – or unidentified related form
 * †Capnuchosphaera tricornis
 * Capulus ungaricus 001.jpg [[Capulus]] – tentative report
 * Cardinia
 * Cardita – tentative report
 * †Cassianella
 * †Cassianella cordillerana – type locality for species
 * †Cassianella gravinaensis – type locality for species
 * †Cassianella lingulata
 * †Cavussurella
 * †Cavussurella grammi – type locality for species
 * †Cedriplites
 * †Cedriplites canadensis
 * Cenoceras NT.jpg †[[Cenoceras]]
 * †Cenoceras imlayi – type locality for species
 * †Cephalotaxopsis
 * †Cephalotaxopsis intermedia
 * †Ceratites
 * †Cercomya – tentative report
 * †Ceriostella
 * †Ceriostella martini
 * †Ceriostella parva
 * Cerithium – tentative report
 * †Chandlerichthys – type locality for genus
 * †Chandlerichthys strickeri – type locality for species
 * †Chinitnites
 * †Chinitnites parviformus – type locality for species
 * Chlamys
 * †Choffatia
 * †Chondrites – tentative report
 * †Chondrites heeri – or unidentified comparable form
 * †Chondrocoenia
 * †Chondrocoenia paradoxa – or unidentified comparable form
 * †Chonetes – tentative report
 * †Christitys
 * †Christitys martini – type locality for species
 * †Chulitnacula
 * †Chulitnacula alaskana – type locality for species
 * Cidaris cidaris MHNT.jpg [[Cidaris]] – tentative report
 * †Cimolodon
 * Cladophlebis
 * †Cladophlebis hirta – tentative report
 * †Claraia
 * †Claraia stachei
 * †Cleoniceras
 * †Cleoniceras overbecki – type locality for species
 * †Clionitites – tentative report
 * †Cobbanites
 * †Cobbanites talkeetnanus
 * †Coccophyllum
 * †Collonia
 * †Collonia occidentalis – or unidentified comparable form
 * †Coniopteris
 * †Coniopteris arctica - or unidentified loosely related form
 * †Coniopteris saportana
 * †Conucardia
 * †Corum
 * †Corum perfectum
 * †Corum regium
 * †Corum speciosum
 * †Cosmonautilus – tentative report
 * †Costispiriferina
 * †Costispiriferina pittensis – or unidentified related form
 * †Covracythere
 * †Covracythere binoda – type locality for species
 * †Covracythere gryci – type locality for species
 * †Cranwellia
 * †Cranwellia rumseyensis
 * †Cranwellia striata
 * †Crassistella
 * †Crassistella juvavica
 * †Crassistella parvula
 * †Crassistella vesiculosa – or unidentified comparable form
 * †Crenipecten – tentative report
 * †Crenipecten crenulatus – or unidentified comparable form
 * †Crucella
 * †Crucella magna – type locality for species
 * †Ctenis
 * †Ctenophyllum
 * †Ctenophyllum angustifolim – tentative report
 * †Cuifia
 * †Cuifia marmorea – or unidentified comparable form
 * †Curtoseris
 * †Curtoseris dunlapcanyonae
 * †Cyathocoenia
 * †Cycloceltites
 * †Cycloceltites arduini – or unidentified comparable form
 * †Cylindroteuthis
 * †Cypridea
 * †Cyrtia
 * †Cyrtina – report made of unidentified related form or using admittedly obsolete nomenclature

D

 * Dactylioceras NT.jpg †[[Dactylioceras]]
 * †Dactylioceras commune – or unidentified comparable form
 * †Dactylioceras kanense
 * †Dagyspirifer – type locality for genus
 * †Dagyspirifer fascicostata – type locality for species
 * †Damesites
 * †Damesites hetonaiensis
 * †Daonella
 * †Daxatina
 * †Daxatina canadensis – or unidentified comparable form
 * Dentalina
 * †Dentalium
 * †Desmiophyllum
 * †Desmiophyllum magnum
 * †Desmiophyllum spp.
 * †Desmoceras
 * †Desmoceras japonicum
 * †Desmophyllites
 * †Desmophyllites diphylloides
 * †Dettermania
 * †Dettermania truncata – type locality for species
 * Dicotylophyllum
 * †Dicotylophyllum spp.
 * †Dictyophyllum
 * †Dictyophyllum nilssoni
 * Didymoceras species.JPG †[[Didymoceras]]
 * †Didymoceras hornbyense – or unidentified related form
 * †Dielasma – tentative report
 * †Dielasma chapini – type locality for species
 * †Dieneroceras
 * †Dieneroceras dieneri
 * †Dimyodon
 * †Dimyodon storrsi
 * †Diplomoceras
 * †Diplomoceras notabile
 * †Diplomoceras notable
 * †Discamphiceras
 * †Discamphiceras reissi – or unidentified related form
 * †Discamphiceras silberlingi – or unidentified comparable form
 * †Discophyllites
 * †Discophyllites patens
 * †Discotropites
 * †Discotropites davisi
 * †Discotropites mojsvarensis
 * †Discotropites sandlingensis
 * †Distichomeandra
 * †Distichomeandra austriaca
 * †Distichomeandra minor
 * †Distichophyllia
 * †Distichophyllia marmorea
 * †Distichophyllia melnikovae – type locality for species
 * †Distichophyllia norica
 * Ditrupa
 * †Ditrupa cornu – type locality for species
 * †Divatella
 * †Divatella robinsoni – type locality for species
 * †Docidoceras
 * †Docidoceras camachoi – type locality for species
 * †Docidoceras longalvum – or unidentified related form
 * †Docidoceras paucinodosum – type locality for species
 * †Docidoceras widebayense – type locality for species
 * Gasteropods - Ammonites - Douvilleiceras sp. cropped.jpg †[[Douvilleiceras]]
 * †Douvilleiceras mammillatum
 * †Dromaeosaurus
 * †Dromaeosaurus albertensis

E

 * †Edmontonia
 * Anatotitan BW.jpg]] †Edmontosaurus'' – or unidentified related form
 * †Edmontosaurus saskatchewanensis
 * †Eleganticeras
 * †Eleganticeras exaratum – or unidentified comparable form
 * †Ellisonia
 * †Ellisonia triassica
 * †Elymella – tentative report
 * †Elymella nuculoides – or unidentified comparable form
 * †Elysastraea
 * †Elysastraea profunda
 * †Elysastraea vancouverensis
 * †Enantigonathus
 * †Enantigonathus mungoensis
 * †Enantigonathus ziegleri
 * †Entolium
 * †Entolium utukokense – type locality for species
 * †Entolium yukonensis – type locality for species
 * †Entollum
 * †Eocomoseris
 * †Eocomoseris ramosa
 * †Eogunnarites
 * †Eogunnarites alaskaensis
 * †Eogunnarites alaskensis
 * †Eolytoceras
 * †Eolytoceras tasekoi – or unidentified comparable form
 * †Eopecten – tentative report
 * †Epigondolella
 * †Epigondolella bidentata – or unidentified comparable form
 * †Eptingium
 * †Eptingium manfredi – or unidentified comparable form
 * †Equisetites
 * †Equisetites burejensis
 * †Erdtmanipollis
 * †Erdtmanipollis procumbentiformis
 * †Erycites
 * †Erycites howelli
 * †Euaptetoceras
 * †Euaptetoceras amplectens
 * †Euaptetoceras nucleospinosum – or unidentified related form
 * Eubostrychoceras japonicum.jpg †[[Eubostrychoceras]]
 * †Eubostrychoceras japonicum – or unidentified comparable form
 * †Eudmetoceras
 * †Eudmetoceras eudmetum – or unidentified related form
 * †Euflemingites
 * †Euflemingites cirratus
 * †Euflemingites romunderi
 * †Eumorphotis
 * †Eumorphotis nationalis – type locality for species
 * †Euomphaloceras
 * †Euomphalus
 * †Euphyllites – tentative report

F

 * †Faguspollenites
 * †Faguspollenites granulatus
 * †Fanninoceras
 * †Fanninoceras carlottense
 * †Fanninoceras fannini
 * †Fanninoceras maudense – or unidentified comparable form
 * †Ferresium
 * †Fibulapollis
 * †Fissirhynchia
 * †Fissirhynchia fissicostata
 * †Flaventia – tentative report
 * †Flaventia kukpowrukensis – type locality for species
 * †Franziceras – tentative report
 * †Freboldiceras – type locality for genus
 * †Freboldiceras singulare – type locality for species
 * †Fresvillia
 * †Fresvillia teres – or unidentified related form

G

 * †Gabbioceras
 * †Gablonzeria
 * †Gablonzeria grandiosa
 * †Gablonzeria major
 * †Gablonzeria profunda
 * Gaudryceratidae - Gaudryceras species.JPG †[[Gaudryceras]]
 * †Gaudryceras denseplicatum – or unidentified related form
 * †Gaudryceras hobetsense
 * †Gaudryceras tenuiliratum
 * †Gavellinella
 * †Gavellinella velascoensis – or unidentified comparable form
 * †Germanonautilus
 * †Germanonautilus brooksi – type locality for species
 * †Gervillia
 * †Gervillia spp.
 * Ginkgo
 * Ginkgo adiantoides - G. cranii.jpg †[[Ginkgo adiantoides]] - or unidentified loosely related form
 * †Ginkgo concinna - or unidentified loosely related form
 * Gleichenia
 * †Gleichenia pseudocrenata – or unidentified comparable form
 * †Glossites – tentative report
 * †Glossites lingualis – or unidentified comparable form
 * †Goniomya – tentative report
 * †Gonodon – tentative report
 * †Gowericeras
 * †Gowericeras snugharborense – type locality for species
 * †Gowericeras spinosum – type locality for species
 * †Grammatodon
 * †Grantziceras
 * †Grantziceras affine
 * †Grantziceras glabrum
 * GryphaeaCretaceousTexas.jpg †[[Gryphaea]]
 * †Gryphaea arcuataeformis
 * †Gryphaea arcusta – or unidentified comparable form
 * †Gryphaea cymbium – or unidentified comparable form
 * †Gryphaea impressimarginata
 * †Gryphaea keilhaui – or unidentified comparable form
 * †Gryphaea rockymontana
 * †Gulielmiceras
 * †Gulielmiceras alaskanum – type locality for species
 * Guttulina
 * †Gymnocodium
 * †Gymnocodium bellerophontis
 * †Gypsonictops – or unidentified comparable form
 * Gyroidinoides

H

 * †Halobia
 * †Halobia alaskana – type locality for species
 * †Halobia austriaca
 * †Halobia brooksi – type locality for species
 * †Halobia cordillerana
 * †Halobia dalliana – type locality for species
 * †Halobia dilatata
 * †Halobia distincta
 * †Halobia fallax
 * †Halobia halorica
 * †Halobia lineata
 * †Halobia ornatissima
 * †Halobia septentrionalis – type locality for species
 * †Halobia superba
 * †Halobia sustriaca
 * †Halobia symmetrica – type locality for species
 * †Halomitra – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Halomitra triadica
 * †Halorella – tentative report
 * †Halorites
 * †Hamulus – tentative report
 * †Hannaoceras – tentative report
 * Haplophragmoides
 * †Hauerites
 * †Healdia
 * †Hebetoxyites
 * †Hebetoxyites hebes – or unidentified related form
 * †Heilungia
 * †Heilungia oloensis – or unidentified comparable form
 * †Heptastylis
 * Hesperornis BW.jpg †[[Hesperornis]]
 * †Heterastridium
 * †Heterastridium conglobatum
 * Heteropora
 * †Hiatobairdia
 * †Hiatobairdia arcuata
 * †Higumastra
 * †Higumastra transversa – type locality for species
 * †Hildaites – tentative report
 * †Himavatites – tentative report
 * †Himavatites multiauritis – or unidentified comparable form
 * †Holcophylloceras
 * †Holcophylloceras costisparsum
 * †Hoplotropites
 * †Hoplotropites jokelyi – or unidentified comparable form
 * †Hsuum – tentative report
 * †Hsuum inexploratum – type locality for species
 * †Hulenites
 * †Hulenites reesidei – or unidentified comparable form
 * †Hypophylloceras
 * †Hypophylloceras californicatus – or unidentified comparable form
 * †Hypophylloceras californicum – or unidentified comparable form

I

 * †Iniskinites
 * †Iniskinites abruptus – type locality for species
 * †Iniskinites intermedius – type locality for species
 * †Iniskinites magniformus
 * †Iniskinites martini – type locality for species
 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[Inoceramus]]
 * †Inoceramus comancheanus
 * †Inoceramus cuvieri – or unidentified comparable form
 * †Inoceramus elegans – or unidentified related form
 * †Inoceramus eximius
 * †Inoceramus hobetsensis – or unidentified related form
 * †Inoceramus mamatensis – or unidentified related form
 * †Inoceramus naumanni – or unidentified comparable form
 * †Inoceramus porrectus – or unidentified comparable form
 * †Inoceramus schmidti
 * †Inoceramus subundatus – or unidentified comparable form
 * †Inoceramus teshioensis – or unidentified related form
 * †Inoceramus yokoyamai – or unidentified comparable form
 * †Integricorpus
 * †Isastrea – tentative report
 * Isocrinus
 * †Isocrinus gravinse
 * †Isocyprina – tentative report
 * Pteriidae - Isognomon maxillatus.JPG [[Isognomon]] – tentative report

J

 * †Joannites
 * †Juvavites
 * †Juvavites knowltoni
 * †Juvavites magnus – or unidentified comparable form
 * †Juvavites subinterruptus
 * †Juvenites
 * †Juvenites septentrionalis

K

 * †Kammerkarites
 * †Kammerkarites frigga – or unidentified comparable form
 * †Kammerkarites megastoma - or unidentified loosely related form
 * †Kenella
 * †Kenella filatovii
 * †Kennicottia – type locality for genus
 * †Kennicottia bifurcata – type locality for species
 * †Kennicottia rugosa – type locality for species
 * †Kepplerites
 * †Kompsasteria
 * †Kompsasteria oligocystis – or unidentified comparable form
 * †Kosmoceras
 * Stephanoceratidae - Kosmoceras spinosum.jpg †[[Kosmoceras spinosum]] – or unidentified comparable form
 * †Kuhnastraea
 * †Kuhnastraea decussata
 * †Kuhnastraea incrassata – type locality for species
 * †Kukaspis – type locality for genus
 * †Kukaspis usingeri – type locality for species

L

 * †Laballa
 * †Laballa suessi
 * †Lanceolites
 * †Lanceolites bicarinatus
 * †Lanceolites compactus
 * †Latimaeandra – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Latimaeandra alaskana
 * †Leconteites
 * †Leconteites deansi
 * †Leconteites deansii
 * †Leconteites modestus
 * †Lemuroceras
 * †Lemuroceras dubium – or unidentified comparable form
 * †Leptaleoceras – tentative report
 * †Liliacidites
 * †Liliacidites variegatus
 * †Lilloettia
 * †Lilloettia buckmani
 * †Lilloettia lilloetensis
 * †Lilloettia mertonyarwoodi
 * †Lilloettia milleri – type locality for species
 * †Lilloettia stantoni – type locality for species
 * Lima
 * †Lima blackburnei – type locality for species
 * †Lima kimballi – or unidentified related form
 * †Lima martini – type locality for species
 * †Lima spp.
 * †Lioceratoides
 * †Lioceratoides involutum – or unidentified comparable form
 * †Liospiriferina
 * †Liospiriferina rostrata
 * †Lobites
 * †Lobites pacianus – or unidentified comparable form
 * †Lobothyris
 * †Lobothyris monstrifer – or unidentified comparable form
 * †Lobothyris mostrifer – or unidentified comparable form
 * †Lobothyris praepunctata
 * †Lobothyris punctata – or unidentified comparable form
 * †Loranthacites
 * †Loranthacites pilatus
 * †Lucina
 * Lytoceras fimbriatum.JPG †[[Lytoceras]]
 * †Lytoceras eudesianum – or unidentified related form
 * †Lytoceras fimbriatum – or unidentified comparable form

M

 * †Maclurites – tentative report
 * †Macrophylloceras
 * †Macrophylloceras grossicostatum
 * †Maeandrostylis
 * †Maeandrostylis grandiseptus
 * †Maeandrostylis vancouverensis
 * †Mancicorpus
 * †Mancicorpus trapeziforme
 * †Maoritrigonia
 * †Margarastraea
 * †Margarastraea eucystis
 * †Margarastraea granissima
 * Margarites pupillus 01.JPG [[Margarites]]
 * †Margarites moffiti – type locality for species
 * †Margaritropites
 * †Margaritropites johnsoni
 * †Margarosmilia
 * †Margarosmilia chalyana – tentative report
 * †Margarosmilia charlyana
 * †Margarosmilia confluens
 * †Margarosmilia richthofeni – or unidentified comparable form
 * †Marginotruncana
 * †Marginotruncana sigali – or unidentified comparable form
 * †Marshallites
 * †Marshallites cumshewaensis
 * †Meekoceras
 * †Meekoceras gracilitatis
 * †Meginoceras
 * †Meleagrinella
 * †Mesochara
 * †Mesopuzosia
 * †Mesopuzosia indopacifica – or unidentified comparable form
 * †Metapolygnathus
 * †Metapolygnathus primitius
 * †Metasibirites
 * †Metussuria
 * †Metussuria waageni
 * †Microchara
 * †Microdoma – tentative report
 * †Microreticulatisporites
 * †Microreticulatisporites uniformis
 * Milax
 * †Milax alienus – type locality for species
 * †Milax flexuosus – type locality for species
 * †Milax inflatus – type locality for species
 * †Minetrigonia
 * †Minetrigonia cairnesi – or unidentified comparable form
 * †Minetrigonia suttonensis
 * †Mirella
 * †Mirella borealis – or unidentified related form
 * Mytilidae - Modiolus species.JPG †[[Modiolus (bivalve)|Modiolus]]
 * †Moffiites
 * †Moffiites robustus
 * †Moffites
 * †Moffites robustus
 * †Moffitites – type locality for genus
 * †Moffitites crassus
 * †Moffitites robustus – type locality for species
 * †Mojsvaroceras – tentative report
 * †Mongolocypris
 * †Monotis
 * †Monotis alaskana – type locality for species
 * †Monotis anjuensis
 * †Monotis daonellaeformis
 * †Monotis haueri
 * †Monotis jakutica
 * †Monotis obtusicostata
 * †Monotis ochotica
 * †Monotis pachypleura
 * †Monotis pinensis – tentative report
 * †Monotis subcircularis
 * †Monotis typica
 * †Montlivaltia
 * †Montlivaltia martini – type locality for species
 * †Muelleritortis
 * †Muelleritortis cochleata
 * †Mullerites
 * †Mullerites pleuroacanthitoides – or unidentified comparable form
 * †Muramotoceras
 * †Muramotoceras yezoense – or unidentified related form
 * †Murchisonia – tentative report
 * †Myoconcha
 * †Myoconcha nana – or unidentified comparable form
 * Myophorella-1.jpg †[[Myophorella]]
 * †Myophorella alaskaensis – type locality for species
 * †Myophorella argo
 * †Myophorella dawsoni
 * †Myophorella devexa
 * †Myophorella orientalis
 * †Myophorella packardi
 * †Myophorella tipperi
 * †Myophorella tuxedniensis – type locality for species
 * †Myophoria
 * †Myophoria beringiana – type locality for species
 * †Myphoria – tentative report
 * †Mytiloceramus
 * †Mytiloceramus lucifer
 * †Mytiloides
 * †Mytiloides stantoni
 * Miesmuscheln Mytilus 1.jpg †[[Mytilus (genus)|Mytilus]]

N

 * Nanuqsaurus NT small cropped.png †[[Nanuqsaurus]] – type locality for genus
 * †Nanuqsaurus hoglundi – type locality for species
 * Napora
 * †Napora aculeata – type locality for species
 * †Napora bukryi – or unidentified comparable form
 * †Napora milleri – type locality for species
 * †Napora pualensis – type locality for species
 * †Nathorstites
 * †Nathorstites alaskanus – type locality for species
 * Natica
 * †Natica spp.
 * †Neogondelella
 * †Neogondelella jubata
 * †Neogondolella
 * †Neogondolella navicula
 * †Neogondolella silberlingi
 * †Neogondolella tozeri
 * †Neohimavatites
 * †Neohimavatites canadensis – or unidentified comparable form
 * †Neophylloceras
 * †Neophylloceras hetonaiense
 * †Neophylloceras ramosum
 * †Neophylloceras seresitense
 * †Neospathodus – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Neospathodus conservativus
 * Nerita polita (Linné, 1758) (4574792797).jpg sea snail]] Nerita'' – tentative report
 * †Neritaria
 * †Neritaria nuetzeli – type locality for species
 * Neritopsis
 * †Nevadathalamia
 * †Nevadathalamia cylindrica
 * †Nevadathalamia minima – type locality for species
 * †Nilsonia
 * †Nilsonia decursiva – or unidentified comparable form
 * †Nilsonia magnifolia
 * †Nilsonia menneri
 * †Nilsonia polymorpha
 * †Nilsonia serotina – or unidentified comparable form
 * Nodosaria
 * †Novispathodus
 * †Novispathodus waageni
 * Nuculidae - Nucula piacentina.jpg [[Nucula]]
 * †Nucula percrassa – or unidentified related form
 * Nuculana – tentative report

O

 * †Ogmoconcha
 * †Ogmoconcha alaskaense – type locality for species
 * †Ogmoconcha limbata – or unidentified related form
 * †Ogmoconcha marquardti
 * †Ogmoconcha owthropensis
 * †Ogmoconcha tailleuri – type locality for species
 * †Ogmoconcha unicerata – type locality for species
 * †Omphaloptycha
 * †Onychiopsis
 * †Onychiopsis psilotoides – or unidentified comparable form
 * †Ophiceras
 * †Ophiceras commune
 * †Ophiceras greenlandicum – or unidentified comparable form
 * †Orbiculiforma
 * †Orbiculiforma iniqua – type locality for species
 * †Orbiculiforma multifora – or unidentified related form
 * †Orbiculiformella – tentative report
 * †Orbiculiformella incognita – type locality for species
 * Ostrea
 * †Otoceras
 * †Otoceras boreale
 * †Otoscaphites
 * †Otoscaphites teshioensis
 * †Otozamites
 * †Otozamites bornholmiensis – tentative report
 * †Otozamites pterophylloides
 * †Owenites
 * †Owenites koeneni – or unidentified comparable form
 * Oxycerites01.jpg †[[Oxycerites]]
 * †Oxycerites chinitnana – type locality for species
 * †Oxytoma

P

 * †Pachydiscus
 * †Pachydiscus hazzardi – type locality for species
 * †Pachydiscus kamishakensis – type locality for species
 * †Pachydiscus obsoletiformis – type locality for species
 * †Pachydiscus ootacodensis
 * Pachyrhinosaurus Perotorum Alaska copyright web.jpg]]  †Pachyrhinosaurus''
 * †Pachyrhinosaurus perotorum – type locality for species
 * †Pagiophyllum
 * †Pagiophyllum falcatum
 * †Pagiophyllum triangulare
 * †Palaeastraea
 * †Palaeastraea borealis
 * †Palaeastraea descussata
 * †Palaeopharus
 * †Palaeopharus buriji – or unidentified comparable form
 * †Paleosaturnalis
 * †Pamiroseris
 * †Pamiroseris borealis – type locality for species
 * †Pamiroseris meriani
 * †Pamiroseris rectilamellosa – or unidentified comparable form
 * Panopea
 * †Panopea elongatissima – or unidentified comparable form
 * †Panopea kissoumi
 * †Pantanellium
 * †Pantanellium fosteri – or unidentified related form
 * †Paracadoceras
 * †Paracadoceras chisikense – type locality for species
 * †Paracadoceras moffiti – type locality for species
 * †Paracadoceras multiforme
 * †Paracadoceras tonniense – type locality for species
 * †Paracuifia
 * †Paracuifia anomala
 * †Paracuifia jennieae – type locality for species
 * †Paracuifia smithi – type locality for species
 * †Paracyclas – tentative report
 * †Paracyclas ellipticus – or unidentified comparable form
 * †Paradelphinulopsis
 * †Paradelphinulopsis vallieri
 * †Parallelodon
 * †Parallelodon cumshewaensis
 * †Parallelodon simillimus
 * †Paranannites
 * †Paranannites aspenensis
 * †Paranannites slossi
 * †Parareineckeia
 * †Parareineckeia hickersonensis – type locality for species
 * †Parareineckeia shelikofana – type locality for species
 * †Parasilesites – type locality for genus
 * †Parasilesites bullatus – type locality for species
 * †Parasilesites irregularis – type locality for species
 * †Parastraeomorpha
 * †Parastraeomorpha minuscula
 * †Parataxodium
 * †Parataxodium wigginsii – or unidentified comparable form
 * †Paratropites
 * †Parauvanella
 * †Parauvanella ferdowsensis – or unidentified comparable form
 * †Parkinsonia – tentative report
 * †Paroecotraustes
 * †Paronaella
 * †Paronaella bandyi – or unidentified related form
 * †Paronaella pessagnoi – type locality for species
 * †Paronaella pygmaea – or unidentified related form
 * †Paronaella venadoensis – or unidentified related form
 * †Paronaella venusta – type locality for species
 * †Partschiceras
 * †Partschiceras ellipticum – type locality for species
 * †Partschiceras grantzi – type locality for species
 * †Partschiceras japonicum
 * †Partschiceras subobtusiforme
 * Parvamussium – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Parvicingula
 * †Parvicingula blackhornensis
 * †Parvicingula praeacutum – type locality for species
 * †Parvicingula rothwelli – or unidentified related form
 * †Patagiosites
 * †Patagiosites alaskensis – type locality for species
 * Patella – tentative report
 * †Pecten
 * †Pecten spp.
 * †Pelekodites
 * †Pelekodites pelekus – or unidentified comparable form
 * †Pentacrinus
 * Peregrinellidae - Peregrinella multicarinata.JPG †[[Peregrinella]]
 * †Peregrinella chisania – type locality for species
 * †Peribositria – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Peribositria mimer – tentative report
 * †Perispyridium
 * †Perispyridium alinchakense
 * †Perispyridium dettermani
 * †Perispyridium nitidum
 * †Phacelophyllia – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Phacelophyllia suttonensis
 * †Phacelostylophyllum
 * †Phacelostylophyllum zitteli
 * †Phloioceras
 * †Phoenicopsis
 * †Phoenicopsis angustifolia - or unidentified loosely related form
 * Pholadomya
 * Phylloceras NT.jpg †[[Phylloceras]]
 * †Phylloceras bakeri – type locality for species
 * †Phyllopachyceras
 * †Phyllopachyceras chitinanum – type locality for species
 * †Phyllopachyceras forbesianum
 * †Phyllopachyceras shastalense – or unidentified comparable form
 * †Piarorhynchia – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Piarorhynchia hamiltonensis – type locality for species
 * †Pinacoceras
 * †Pinacoceras rex – or unidentified comparable form
 * †Pinna
 * †Pinna expansa – or unidentified comparable form
 * †Pinnigena
 * †Pityolepis – tentative report
 * †Pityophyllum
 * †Pityophyllum nordenskioldii - or unidentified loosely related form
 * †Pityophyllum staratschinii - or unidentified loosely related form
 * †Pityostrobus
 * †Pityostrobus piceoides – or unidentified comparable form
 * †Placites
 * †Placunopsis – tentative report
 * †Plagiostoma
 * †Planolites – tentative report
 * Plataan bladeren.jpg [[Platanus]]
 * †Platanus louravetlanica
 * †Platyceras
 * †Pleuroacanthites
 * †Pleuroacanthites mulleri - or unidentified loosely related form
 * †Pleuromya
 * †Pleuromya carlottensis
 * †Pleuronautilus
 * †Pleuronautilus alaskensis – type locality for species
 * †Pleurophorus – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Pleurophorus overbecki – type locality for species
 * Pleurotomaria
 * Plicatula
 * †Plicatula perimbricata – or unidentified comparable form
 * †Plicatula periobricata – or unidentified comparable form
 * †Podozamites
 * †Podozamites eichwaldii - or unidentified loosely related form
 * †Podozamites spp.
 * †Polycingulatisporites
 * †Polycingulatisporites triangularis
 * †Posidonia
 * †Poulpus
 * †Poulpus transitus
 * †Praeparvicingula
 * †Praeparvicingula communis – type locality for species
 * †Praeparvicingula decora – or unidentified related form
 * †Praeparvicingula inornata – type locality for species
 * †Praeparvicingula prisca – type locality for species
 * †Proarcestes
 * †Proarcestes shastensis
 * †Procerites
 * †Procerites irregularis – type locality for species
 * †Procyclolites
 * †Projuvavites
 * †Projuvavites brockensis
 * †Promathildia – tentative report
 * †Proptychites
 * †Proptychites rosenkrantzei – or unidentified comparable form
 * †Protocardia
 * †Protocula
 * †Protocula bassetti
 * †Protorcula
 * †Protorcula bassetti – type locality for species
 * Trachyceratidae - Protrachyceras psaeudoarchelonus.JPG †[[Protrachyceras]]
 * †Pseudammatoceras
 * †Pseudammatoceras benneri – or unidentified related form
 * †Pseudaptetoceras
 * †Pseudaptetoceras klimakomphalum
 * †Pseudobythocypris
 * †Pseudocrucella
 * †Pseudocrucella plana – type locality for species
 * †Pseudocrucella prava – type locality for species
 * †Pseudocycas
 * †Pseudodictromitria
 * †Pseudodictromitria carpatica
 * †Pseudoencurtis
 * †Pseudoheliodiscus
 * †Pseudoheliodiscus viejoensis
 * †Pseudolioceras
 * †Pseudolioceras compactile – or unidentified comparable form
 * †Pseudolioceras costistriatum – type locality for species
 * †Pseudolioceras fastigatum – type locality for species
 * †Pseudolioceras lythense – or unidentified comparable form
 * †Pseudolioceras whiteavesi
 * Pseudomelania shell cropped.png †[[Pseudomelania]] – tentative report
 * †Pseudomonotis – tentative report
 * †Pseudophyllites
 * †Pseudophyllites indra
 * †Pseudosageceras
 * †Pseudoseptifer
 * †Pseudospondylospira – type locality for genus
 * †Pseudospondylospira perplexa – type locality for species
 * †Pseudostylosphaera
 * †Pseudostylosphaera coccostyle
 * †Pseudostylosphaera helicatum
 * †Pseudostylosphaera japonica
 * †Pseudostylosphaera nazarovi
 * †Pseudotoites
 * †Pseudotoites argentinus – or unidentified comparable form
 * †Pseudotoites transatlanticus – or unidentified comparable form
 * †Pseudoxybeloceras – tentative report
 * †Pteria
 * †Pterophyllum
 * †Pterophyllum aequale
 * †Pterophyllum rajmahalense
 * †Ptychoceras
 * †Ptychoceras laeve – or unidentified comparable form
 * †Ptyctothyris – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Ptyctothyris stephani
 * Purpurina
 * †Purpurina gravinaensis – type locality for species
 * Desmoceratidae - Puzosia compressa cropped.jpg †[[Puzosia]]
 * †Puzosia alaskana – type locality for species
 * †Puzosigella
 * †Puzosigella perrinsmithi – or unidentified comparable form
 * †Puzosigella spp.
 * †Puzosigella taffi – or unidentified comparable form

Q

 * †Quercoidites
 * †Quercoidites genustriatus

R

 * †Recytella
 * †Reineckeites
 * †Reineckeites stuebeli – or unidentified comparable form
 * †Reineckia
 * †Reineckia stuebeli – or unidentified comparable form
 * †Retiophyllia
 * †Retiophyllia caespitosa
 * †Retiophyllia clathrata – type locality for species
 * †Retiophyllia dawsoni
 * †Retiophyllia delicatula
 * †Retiophyllia fenestrata
 * †Retiophyllia frechi – or unidentified comparable form
 * †Retiophyllia norica
 * †Retiophyllia obtusa
 * †Retiophyllia oppeli
 * †Retiophyllia parviseptum
 * †Retiophyllia robusta – or unidentified comparable form
 * †Retiophyllia tenuicosta
 * Rhombocythere
 * Rhynchonellidae - Rhynchonella species.JPG †[[Rhynchonella]]
 * †Rhynchonella blackwelderi – type locality for species

S

 * †Sagenites – tentative report
 * †Sagenopteris – tentative report
 * †Sarla
 * †Sarla vetusta
 * †Saurexallopus
 * Saurornitholestes digging Burrows wahweap.jpg †[[Saurornitholestes]]
 * †Saurornitholestes langstoni
 * †Saxoceras – tentative report
 * †Saxoceras portlocki - or unidentified loosely related form
 * †Scaphites
 * †Scheffleraephyllum
 * †Scheffleraephyllum venustum
 * †Schizodus – tentative report
 * †Schizodus appressus – or unidentified comparable form
 * †Sciponoceras
 * Scurria – tentative report
 * †Seirocrinus
 * †Seirocrinus subangularis
 * †Septocardia
 * †Septocardia pascoensis – or unidentified comparable form
 * †Septocardia peruviana – or unidentified comparable form
 * Serpula
 * †Seymourites
 * †Seymourites abruptus
 * †Seymourites alticostatus – type locality for species
 * †Seymourites gittinsi
 * †Seymourites ingrahami
 * †Seymourites mcevoyi
 * †Seymourites multus
 * †Seymourites plenus
 * †Seymourites tychonis
 * †Siemiradzkia – or unidentified comparable form
 * †Siemiradzkia aurigera
 * †Sigmopollis
 * †Sigmopollis psilatus
 * †Simbirskites
 * †Sirenites
 * †Sirenites hayesi – type locality for species
 * Bivalvia fossils cropped.jpg [[Solecurtus]] – tentative report
 * †Solecurtus chapmani – type locality for species
 * Solemya – tentative report
 * †Solenopora
 * †Sonninia
 * †Sonninia alaskensis – type locality for species
 * †Sonninia bifurcata – type locality for species
 * †Spatulites
 * †Spatulites spatians – or unidentified related form
 * †Sphaerocladiscites
 * †Sphaerocladiscites martini – type locality for species
 * †Sphaerocladiscites mendenhalli – type locality for species
 * †Sphaeroidochyria – tentative report
 * Sphenobaiera digitata.jpg †[[Sphenobaiera]]
 * †Sphenobaiera biloba - or unidentified loosely related form
 * †Sphenobaiera czekanowskiana - or unidentified loosely related form
 * †Sphenobaiera longifolia - or unidentified loosely related form
 * †Spinidelphinulopsis
 * †Spinidelphinulopsis whaleni
 * †Spiriferina
 * †Spiriferina borealis – tentative report
 * †Spiriferina yukonensis – type locality for species
 * †Spirocyclina – tentative report
 * †Spirogmoceras
 * †Spirogmoceras shastense – or unidentified comparable form
 * †Spondylospira
 * †Spondylospira lewesensis
 * Spondylus.jpg [[Spondylus]] – tentative report
 * †Spongiomorpha
 * †Spongiomorpha acyclica
 * †Spongiomorpha gibbosa
 * †Spongiomorpha ramosa
 * †Steinmannites
 * †Stellispongia
 * †Stellispongia subsphaerica – or unidentified comparable form
 * †Stenocadoceras
 * †Stenocadoceras bowserense – type locality for species
 * †Stenocadoceras iniskinense – type locality for species
 * †Stenocadoceras multicostatum – type locality for species
 * †Stenocadoceras pomeroyense – type locality for species
 * †Stenocadoceras stenoloboide
 * †Stenocadoceras striatum – type locality for species
 * †Stenorachis
 * †Stenorachis striolatus
 * †Stereisporites
 * †Stereisporites regium
 * †Stromatomorpha
 * †Stromatomorpha californica
 * †Stylophyllum
 * †Stylophyllum pygmaeum
 * †Sunrisites – tentative report

T

 * †Taeniopteris – tentative report
 * †Tancredia
 * †Tancredia kurupana – type locality for species
 * †Tancredia stelcki
 * Terebratula
 * Teredolites 012416.jpg [[Teredolites]]
 * †Tetragonites
 * †Tetragonites glabrus
 * †Tetragonites kiliani
 * †Tetragonites timotheanus – or unidentified related form
 * †Thallites
 * †Thallites arctica - or unidentified loosely related form
 * †Thamnasteria
 * †Thamnasteria borealis
 * †Thamnasteria smithi
 * †Thecosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
 * Thracia
 * †Thracia semiplanata
 * †Thracia stelcki
 * †Tosapecten – tentative report
 * †Trachyceras – tentative report
 * †Triassocampe
 * †Triassocampe deweveri
 * †Triassocypris
 * †Trichites – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Tricolpopollenites
 * †Tricolpopollenites parvulus
 * †Trigonarca – or unidentified comparable form
 * †Trigonarca tumida
 * †Trigonia
 * †Trigonodus – tentative report
 * †Tritrabs
 * †Tritrabs worzeli – or unidentified related form
 * Trochocyathus – tentative report
 * Trochus
 * Alaskan troodont Perot Museum.jpg †[[Troodon]]
 * †Troodon formosus
 * †Tropites
 * †Tropites stantoni – type locality for species
 * †Trudopollis
 * †Trudopollis meekeri
 * †Trypanostylus – tentative report
 * †Turanta – tentative report
 * †Turanta unica – type locality for species
 * Turbo – tentative report
 * Turritella – tentative report
 * †Tutcheria
 * †Tutcheria densestriata

U

 * Edmontosaurus Perot Museum.jpg †[[Ugrunaaluk]] – type locality for genus
 * †Ugrunaaluk kuukpikensis – type locality for species
 * †Unnuakomys – type locality for genus
 * †Unnuakomys hutchisoni – type locality for species

V

 * Vaginulina
 * †Valdedorsella – tentative report
 * †Valdedorsella whiteavesi – type locality for species
 * †Variamusiua – tentative report
 * †Vaugonia
 * †Vaugonia doroschini
 * †Vaugonia imlayi – type locality for species
 * †Vermiceras
 * †Vermiceras rursicostatum – or unidentified comparable form
 * †Vinassaspongus
 * †Vinassaspongus erendili
 * †Vinassaspongus subsphaericus

W

 * †Weyla
 * †Weyla unca
 * †Witchellia
 * †Witchellia sutneroides – type locality for species
 * †Wollemanniceras
 * †Wollemanniceras alaskanum
 * †Wollemanniceras fohlinense
 * †Worthenia
 * †Worthenia klamathensis
 * †Worthenia spp.
 * †Wyomingites
 * †Wyomingites aplanatus

X

 * †Xenoceltites
 * †Xenoceltites cordilleranus
 * †Xenocephalites
 * †Xenocephalites hartsocki – type locality for species
 * †Xenocephalites vicarius – type locality for species
 * †Xenoxylon
 * †Xenoxylon latiporosum

Y

 * †Yezoites
 * †Yezoites puerculus
 * †Yezoites teshionesis

Z

 * †Zetoceras
 * †Zetoceras zetes – or unidentified comparable form
 * †Zugmayerella
 * †Zugmayerella americana
 * †Zugmayerella koessensis
 * †Zugmayerella ormana
 * †Zugmayerella uncinata
 * †Zygopleura