List of the Mesozoic life of Idaho

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

A

 * †Albanites 
 * †Albanites americanus – type locality for species
 * †Albanites sheldoni
 * †Ampezzopleura – tentative report
 * †Ampezzopleura tenuis – or unidentified comparable form
 * †Amphitomaria – tentative report
 * †Amphitomaria obscurecostata – type locality for species
 * †Anaflemingites
 * †Anaflemingites russelli – type locality for species
 * †Anasibirites
 * †Anasibirites desertorum
 * †Anasibirites lindgreni
 * †Andangularia
 * †Andangularia babylona – type locality for species
 * †Andangularia occidentalis – type locality for species
 * †Anemia
 * †Anemia fremonti
 * †Angularia
 * †Angularia rectecostata – type locality for species
 * †Anthostylis
 * †Anthostylis acanthophora
 * Arcestes cropped 1.png †[[Arcestes]] – tentative report
 * †Arctomeekoceras
 * †Arctomeekoceras popovi – type locality for species
 * †Arctomeekoceras tardum – type locality for species
 * †Aspenites
 * †Aspenites acutus
 * †Aspiduriella – tentative report
 * †Aspiduriella idahoensis – type locality for species
 * Astarte
 * †Astarte meeki
 * †Astraeomorpha
 * †Astraeomorpha crassisepta
 * †Astrocoenia
 * †Astrocoenia idahoensis – type locality for species
 * †Austrotindaria
 * †Austrotindaria canalensis
 * †Austrotindaria svalbardensis
 * Aviculopecten subcardiformis01.JPG †[[Aviculopecten]] – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Aviculopecten altus – type locality for species
 * †Aviculopecten idahoensis
 * †Aviculopecten pealei – type locality for species

B

 * †Bajarunia
 * †Bajarunia jacksoni
 * †Bajarunia pilata – type locality for species
 * †Bajarunia pilatum
 * †Bakevellia
 * †Bakevillia
 * †Blodgettella
 * †Blodgettella enormecostata – type locality for species
 * †Borestus – tentative report
 * †Brochidiella – type locality for genus
 * †Brochidiella idahoensis – type locality for species

C

 * †Camptonectes
 * †Camptonectes platessiformis
 * †Caribouceras – type locality for genus
 * †Caribouceras slugense – type locality for species
 * †Carteria – type locality for genus
 * †Carteria hotspringensis – type locality for species
 * †Ceccaisculitoides
 * †Ceccaisculitoides hammondi
 * Chlamys Pliocene Cyprus.jpg bivalve]] Chlamys''
 * †Chondrocoenia
 * †Chondrocoenia idahoensis
 * †Chondrocoenia schafhaeutli
 * †Cimolodon
 * †Cimolodon akersteni – type locality for species
 * †Claraia
 * †Claraia extrema
 * †Claraia stachei
 * †Clypites
 * †Clypites tenuis – type locality for species
 * †Coelostylina
 * †Coenastraea
 * †Coenastraea hyatti
 * †Columbites – type locality for genus
 * †Columbites crassicostatus – type locality for species
 * †Columbites dolnapaensis – or unidentified related form
 * †Columbites isabellae – type locality for species
 * †Columbites parisianus – type locality for species
 * Masijimi 01.jpg [[Corbicula]]
 * †Cordillerites – type locality for genus
 * †Cordillerites angulatus – type locality for species
 * †Coscaites
 * †Coscaites crassus – type locality for species
 * Cossmannea
 * †Cryptaulax
 * †Cryptaulax acutus – type locality for species
 * †Cryptaulax gruendeli – type locality for species
 * †Cryptaulax nezperceorum – type locality for species
 * †Cryptaulax rhabdocolpoides
 * †Cryptaulax wallowaensis – type locality for species
 * †Cryptorhynchia
 * †Cryptorhynchia bearensis – type locality for species
 * †Ctenostreon
 * †Ctenostreon gikshanensis – or unidentified comparable form
 * †Cupressinoxylon
 * †Cyathocoenia
 * †Cyathocoenia squiresi
 * †Cycadeoidea
 * †Cylindrobullina – tentative report
 * Cymbospondylus BW.jpg †[[Cymbospondylus]]

D

 * †Dagnoceras
 * †Dagnoceras bonnevillense
 * †Dagnoceras pealei
 * †Dagnoceras zappanense – or unidentified related form
 * †Dalmatites
 * †Dalmatites attenuatus
 * †Dalmatites richardsi
 * †Dennstaedtia – tentative report
 * †Dennstaedtia fremonti
 * †Deweveria
 * †Deweveria dudresnayi – type locality for species
 * †Diatrypesis
 * †Diatrypesis newelli – type locality for species
 * †Dicosmos
 * †Dieneroceras
 * †Dieneroceras dieneri
 * †Distichophyllia
 * †Distichophyllia norica

E

 * †Elysastraea
 * †Elysastraea profunda
 * †Elysastraea vancouverensis
 * †Endostoma – tentative report
 * †Enoploceras
 * †Enoploceras newelli – type locality for species
 * †Entolioides
 * †Entolioides utahensis
 * †Eocalliostoma
 * †Eocalliostoma idahoensis – type locality for species
 * †Eocalliostoma multicostata – type locality for species
 * †Eschericeratites – type locality for genus
 * †Eschericeratites lytoceratoides – type locality for species
 * †Euchrysalis – tentative report
 * †Eucycloscala
 * †Eucycloscala binodosa – or unidentified related form
 * †Euflemingites
 * †Euflemingites cirratus – type locality for species
 * †Eumicrotis – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Eumicrotis curta
 * †Eumorphotis
 * †Eumorphotis multiformis

F

 * †Fengshanites
 * †Fengshanites americanus
 * †Flemingites
 * †Flemingites aspenensis
 * †Flemingites bannockensis
 * †Flemingites cirratus

G

 * †Gablonzeria
 * †Gablonzeria major
 * †Gablonzeria profunda
 * †Germanonautilus
 * †Germanonautilus montpelierensis – type locality for species
 * †Gervillia – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Glabercolumbites – type locality for genus
 * †Glabercolumbites glaber – type locality for species
 * Gleichenia
 * †Gnomohalorites
 * †Gnomohalorites cordilleranus
 * †Grammatodon
 * †Grammatodon haguei
 * GryphaeidaeCretaceousTexas.jpg †[[Gryphaea]]
 * †Gryphaea nebrascensis
 * †Gryphaea planoconvexa
 * †Grypoceras
 * †Grypoceras milleri – type locality for species
 * †Gudrunella – type locality for genus
 * †Gudrunella triassica – type locality for species

H

 * Hedenstroemiidae - Hedenstroemia tscherskii.JPG †[[Hedenstroemia]]
 * †Hedenstroemia kossmati
 * †Hellenites
 * †Hellenites elegans – type locality for species
 * †Hellenites idahoense
 * †Hemilecanites
 * †Hemilecanites paradiscus
 * †Hemiprionites
 * †Hemiprionites typus
 * †Heptastylis – tentative report
 * †Heptastylis alpina
 * †Heptastylis maculata
 * †Holocrinus
 * †Holocrinus smithi

I

 * †Idahocolumbites
 * †Idahocolumbites cheneyi
 * †Idahospira – type locality for genus
 * †Idahospira multispirata – type locality for species
 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[Inoceramus]]
 * †Inyoites
 * †Inyoites oweni
 * †Isculitoides
 * †Isculitoides originis – or unidentified related form

J

 * †Jeanbesseiceras
 * †Jeanbesseiceras jacksoni – type locality for species
 * †Jurassiphorus
 * †Jurassiphorus triadicus
 * †Juvenites – type locality for genus
 * †Juvenites dieneri
 * †Juvenites kraffti – type locality for species
 * †Juvenites septentrionalis
 * †Juvenites thermarum

K

 * †Kazakhstanites
 * †Kazakhstanites dolnapensis
 * †Kiparisovites
 * †Kiparisovites ovalis – or unidentified related form
 * †Kittliconcha
 * †Kittliconcha obliquecostata

L

 * †Lamelliphorus
 * †Lamelliphorus acutelaminatus – type locality for species
 * †Lanceolites
 * †Lanceolites compactus
 * †Lecanites
 * †Lecanites arnoldi
 * †Lepismatina
 * †Lepismatina mansfieldi – type locality for species
 * †Leptochondria
 * †Leptochondria curtocardinalis
 * †Leptochondria occidanea
 * †Levicidaris
 * †Lingula
 * †Lingularia
 * †Liostrea
 * †Liostrea strigilecula
 * †Litogaster
 * †Litogaster turnbullensis – type locality for species
 * Bivalvia - Lopha sp.JPG [[Lopha]]
 * †Loxopleurus
 * †Loxopleurus belliplicatus
 * †Lyosoma
 * †Lyosoma powelli

M

 * †Marcouxia
 * †Marcouxia astakhovi
 * †Maturifusus – tentative report
 * †Maturifusus siphonatus – type locality for species
 * †Meekoceras
 * †Meekoceras cristatum
 * †Meekoceras gracilitatis – type locality for species
 * †Meekoceras haydeni
 * †Meekoceras micromphalus
 * †Meekoceras mushbachanum
 * †Meekoceras patelliforme
 * †Meekoceras sanctorum
 * †Megasphaeroceras
 * †Megasphaeroceras rotundum – or unidentified related form
 * †Metadagnoceras
 * †Metadagnoceras pulchrum – or unidentified related form
 * †Metadagnoceras unicum
 * †Metussuria
 * †Metussuria waageni – type locality for species
 * †Microtaenia
 * †Microtaenia variabilis
 * †Miocidaris
 * †Mojsvaroceras
 * †Mojsvaroceras frenchi – type locality for species
 * †Myalina
 * †Myalina postcarbonica

N

 * †Naticopsis – tentative report
 * †Nemacanthus
 * †Nemacanthus elegans – type locality for species
 * †Neocolumbites
 * †Neogondolella
 * †Neogondolella jubata
 * †Neoschizodus
 * †Neospathodus
 * †Neospathodus homeri – tentative report
 * †Neospathodus triangularis
 * †Nerinea
 * †Nodoconus – type locality for genus
 * †Nodoconus nodiferus – type locality for species
 * †Nordophiceratoides
 * †Nordophiceratoides adriani – type locality for species
 * †Nordophiceratoides bartolinae – type locality for species
 * †Nordophiceratoides catherinae – type locality for species
 * †Nordophiceratoides gracilis – type locality for species
 * Stephanoceratidae - Normannites braikenridgei cropped.jpg †[[Normannites]]
 * †Normannites crickmayi – or unidentified comparable form
 * †Nuetzelopsis
 * †Nuetzelopsis tozeri

O

 * †Obnixia – type locality for genus
 * †Obnixia thaynesiana – type locality for species
 * †Omphaloptycha
 * †Omphaloptycha jaworskii
 * †Orthoceras
 * Oyster.jpg [[Ostrea]]
 * †Ostrea strigicula
 * †Owenites
 * †Owenites koeneni – or unidentified comparable form

P

 * [[File:Pagiophyllum sp. - Naturhistorisches Museum, Braunschweig, Germany - DSC05070 cropped.jpg|thumb|upright=0.659|Fossilized foliage of the Carboniferous-Late Cretaceous plant Pagiophyllum]] †[[Pagiophyllum]]
 * †Palaeastraea
 * †Palaeonarica
 * †Palaeonarica lapwaiensis – type locality for species
 * †Palaeophyllites – tentative report
 * †Pamiroseris
 * †Pamiroseris rectilamellosa
 * †Pamiroseris smithi
 * †Paradelphinulopsis
 * †Paradelphinulopsis vallieri
 * †Paragoceras
 * †Paragoceras malayanus – or unidentified comparable form
 * †Paragoceras timorensis – or unidentified related form
 * †Paranannites – type locality for genus
 * †Paranannites aspenensis – type locality for species
 * †Paraphyllanthoxylon
 * †Paraphyllanthoxylon idahoense
 * †Paullia
 * †Pentacrinus
 * †Pentacrinus asteriscus
 * †Periallus – type locality for genus
 * †Periallus woodsidensis – type locality for species
 * †Permophorus
 * †Permophorus bregeri
 * †Permophorus triassicus
 * †Phacelophyllia – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Phacelophyllia suttonensis
 * †Phacelostylophyllum
 * †Phacelostylophyllum zitteli
 * †Phaedrysmocheilus
 * †Phaedrysmocheilus idahoensis – type locality for species
 * Pholadomyidae - Pholadomya scutata.JPG [[Pholadomya]]
 * †Pholadomya inaequiplicata
 * †Piarorhynchella
 * †Piarorhynchella triassica
 * †Plagiostoma
 * †Plagiostoma occidentalis
 * †Platymya
 * †Platymya rockymontana
 * †Platyvillosus
 * †Platyvillosus asperatus
 * †Pleuromya
 * †Pleuromya subcompressa
 * Tainoceratidae - Pleuronautilus mariani.JPG †[[Pleuronautilus]]
 * †Polygyrina – tentative report
 * †Polygyrina subannulata – type locality for species
 * †Portneufia – type locality for genus
 * †Portneufia episulcata – type locality for species
 * †Praelittorina
 * †Praelittorina sepkoskii – type locality for species
 * †Praesibirites – tentative report
 * †Precorynella
 * †Preflorianites
 * †Preflorianites toulai
 * †Procarnites
 * †Procolumbites
 * †Procolumbites karataucicus
 * †Prohungarites
 * †Prohungarites beyrichitoides – type locality for species
 * †Prohungarites gutstadti
 * †Prohungarites mckelvei
 * †Promathildia – tentative report
 * †Promathildia multituberculata – type locality for species
 * †Promyalina
 * †Promyalina putiatinensis
 * †Promyalina spathi
 * †Pronoella
 * †Pronoella cinnabarensis
 * †Pronoella uintahensis
 * †Protocardia
 * †Protocardia schucherti – or unidentified comparable form
 * †Protodonax
 * †Protogusarella – type locality for genus
 * †Protogusarella smithi – type locality for species
 * †Protorcula – tentative report
 * †Protorcula concava – type locality for species
 * †Pseudaspidites
 * †Pseudaspidites wheeleri
 * †Pseudharpoceras
 * †Pseudharpoceras idahoense
 * Pseudomelania shell cropped.png †[[Pseudomelania]] – tentative report
 * †Pseudomonotis
 * †Pseudomonotis idahoensis
 * †Pseudomonotis pealei
 * †Pseudosageceras
 * †Pseudosageceras multilobatum – type locality for species
 * †Pseudoscalites
 * †Pseudoscalites elegantissimus – or unidentified comparable form
 * †Pteria – tentative report
 * †Pteria ussurica – or unidentified comparable form
 * †Ptychomphalus – tentative report
 * †Ptychomphalus protei – or unidentified related form
 * †Ptychostoma
 * †Ptychostoma ornata – type locality for species
 * †Pyknotylacanthus – type locality for genus
 * †Pyknotylacanthus spathianus – type locality for species
 * †Pyrgulifera
 * †Pyrgulifera humerosa

Q

 * †Quenstedtia
 * †Quenstedtia sublevis

R

 * †Retiophyllia
 * †Retiophyllia clathrata – or unidentified comparable form
 * †Retiophyllia dawsoni
 * †Retiophyllia parviseptum
 * †Rhaetina
 * †Rhaetina incurvirostra – type locality for species
 * Rhynchonellidae - Rhynchonella species.JPG †[[Rhynchonella]] – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Rudolftruempyiceras
 * †Rudolftruempyiceras apostolicum
 * †Rudolftruempyiceras apostolicus

S

 * Saurichthys.JPG  †[[Saurichthys]]
 * †Saurichthys elongatus – or unidentified comparable form
 * †Sibirites
 * †Sibirites carinatus – type locality for species
 * †Silberlingeria
 * †Silberlingeria bearlakensis
 * †Silberlingeria coronata
 * †Silberlingeria sarahjanae – type locality for species
 * †Siphonilda – type locality for genus
 * †Siphonilda pulchella – type locality for species
 * †Sororcula
 * †Sororcula gracilis
 * †Spiniomphalus – type locality for genus
 * †Spiniomphalus duplicatus – type locality for species
 * †Spiriferina
 * †Spiriferina roundyi
 * †Spirostylus
 * †Spondylospira
 * †Spondylospira lewesensis
 * †Stacheites
 * †Stacheites concavus
 * †Stacheites floweri
 * †Stacheites prionoides – or unidentified related form
 * †Stemmatoceras
 * †Stemmatoceras albertense – or unidentified related form
 * Stephanoceratidae - Stephanoceras blagdeni.JPG †[[Stephanoceras]]
 * †Stephanoceras skidegatensis – or unidentified comparable form
 * †Stylophyllum
 * †Stylophyllum paradoxum
 * †Subcolumbites
 * †Subcolumbites perrinismithi – or unidentified related form
 * †Subhungarites
 * †Subhungarites yatesi
 * †Submeekoceras
 * †Submeekoceras mushbachanum – type locality for species
 * †Svalbardiceras
 * †Svalbardiceras freboldi – or unidentified comparable form
 * †Svalbardiceras spitzbergensis – or unidentified related form
 * †Svalbardiceras sulcatum – type locality for species

T

 * †Tancredia – tentative report
 * †Tapponnierites – type locality for genus
 * †Tapponnierites tenuicostatus – type locality for species
 * †Tardicolumbites – type locality for genus
 * †Tardicolumbites tardicolumbus – type locality for species
 * †Teinostomopsis – tentative report
 * †Tempskya
 * †Tempskya wesselii
 * Tenontosaurus BW.jpg †[[Tenontosaurus]]
 * †Teretrina
 * †Teretrina aculeata
 * †Teretrina canaliculata – type locality for species
 * †Teretrina schulberti – type locality for species
 * †Thamnasteria
 * †Thamnasteria smithi
 * †Thaumastocoelia
 * †Thecomeandra
 * †Thecomeandra vallieri – type locality for species
 * †Tirolites
 * †Tirolites harti
 * †Tirolites knighti
 * †Tirolites pealei
 * †Tirolites smithi – type locality for species
 * †Tretospira
 * †Triadocidaris
 * Trigoniidae - Trigonia interlaevigata.JPG †[[Trigonia]]
 * †Trigonia montanaensis
 * †Tyrsoecus – tentative report

U

 * †Ueckerconulus
 * †Ueckerconulus noricus – type locality for species
 * †Undularia
 * †Undularia americana – type locality for species
 * †Unionites
 * †Ussuria
 * †Ussuria occidentalis
 * †Ussurites
 * †Ussurites mansfeldi
 * †Ussurites mansfieldi
 * †Ussurites submansfeldi – type locality for species

V

 * †Vex – type locality for genus
 * †Vex semisimplex – type locality for species
 * †Vitimetula – type locality for genus
 * †Vitimetula parva – type locality for species

W

 * †Weitschatopsis
 * †Weitschatopsis pulchra
 * †Worthenia
 * †Worthenia rhombifera – or unidentified comparable form
 * †Wyomingites – type locality for genus
 * †Wyomingites aplanatus – type locality for species
 * †Wyomingites arnoldi – type locality for species

X

 * †Xenoceltites
 * †Xenoceltites cordilleranus
 * †Xenoceltites crenulatus – type locality for species
 * †Xenoceltites spencei
 * Xenodiscus besairiei.JPG †[[Xenodiscus]]
 * †Xenodiscus gilberti
 * †Xenodiscus tarpeyi
 * †Xenodiscus waageni
 * †Xenodiscus whiteanus

Y

 * †Yunnania – tentative report
 * †Yunnania subcincta
 * †Yvesgalleticeras
 * †Yvesgalleticeras montpelierense
 * †Yvesgalleticeras raphaeli – type locality for species

Z

 * †Zardinechinus
 * †Zygopleura