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

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• Y
• References

A

• † Acaenasuchus – type locality for genus
  • † Acaenasuchus geoffreyi – type locality for species
• † Acallosuchus – type locality for genus
  • † Acallosuchus rectori – type locality for species

• 

  † Acanthohoplites
  • † Acanthohoplites berkeyi
  • † Acanthohoplites erraticus
  • † Acanthohoplites hesper
  • † Acanthohoplites impetrabilis
  • † Acanthohoplites schucherti
  • † Acanthohoplites teres
• Acila
  • † Acila schencki
• Acirsa
  • † Acirsa kelseyi – type locality for species
• Acmaea
• † Acrodus
• † Acteon
  • † Acteon propinguis
• † Actinastrea
• † Adamanasuchus – type locality for genus
  • † Adamanasuchus eisenhardtae – type locality for species
• † Admetopsis
  • † Admetopsis subfusiformis
• † Adocus

• 

  † Allocrioceras
  • † Allocrioceras annulatum
• † Alzadites
  • † Alzadites incomptus
• † Ambrosea
  • † Ambrosea nitida
• † Ammorhynchus – type locality for genus
  • † Ammorhynchus navajoi – type locality for species
• † Anaschisma – report made of unidentified related form or using admittedly obsolete nomenclature
• † Anatimya
  • † Anatimya virgata
• † Anchura
  • † Anchura hopii – type locality for species

• 

  † Angistorhinus – tentative report
• † Anisoceras
  • † Anisoceras coloradoense
• † Anisodontosaurus – type locality for genus
  • † Anisodontosaurus greeri – type locality for species
• † Anisomyon
  • † Anisomyon spp.
• † Anomia
  • † Anomia ponticulana
• † Antediplodon
  • † Antediplodon dockumensis
• † Apachesaurus
  • † Apachesaurus gregorii
• † Apatosaurus
• † Aphrodina
  • † Aphrodina munda – or unidentified comparable form

• 

  † Araucarioxylon
  • † Araucarioxylon arizonicum
• † Arca
• Arcopagia – or unidentified comparable form
  • † Arcopagia A – informal
• Arctica
• † Arganodus
• † Aricycas
  • † Aricycas paulae
• † Arizonasaurus – type locality for genus
  • † Arizonasaurus babbitti – type locality for species
• Astarte
  • † Astarte adkinsi
• † Australosomus – or unidentified comparable form

B

• 

  † Baculites
  • † Baculites calamus
• Barbatia
  • † Barbatia tramitensis
• † Barrancapus
• † Batrachopus
  • † Batrachopus deweyi
• † Bellifusus
  • † Bellifusus gracilistriatus
  • † Bellifusus willistoni – or unidentified comparable form
• † Beudanticeras
  • † Beudanticeras victoris

• 

  † Boreosomus – tentative report
• † Borissiakoceras
• † Borrissiakoceras
  • † Borrissiakoceras orbiculatum
• Brachiodontes
  • † Brachiodontes filisculptus
• † Brachychirotherium
• † Brasilichnium – or unidentified comparable form
• † Breviarca – tentative report
• † Burroceras
  • † Burroceras clydense
  • † Burroceras transitorium

C

• Cadulus
  • † Cadulus praetenuis
• † Calamites
• † Calamophylliopsis
  • † Calamophylliopsis sandbergeri
• † Calsoyasuchus – type locality for genus
  • † Calsoyasuchus valliceps – type locality for species
• † Calycoceras
  • † Calycoceras naviculare
• † Calyptosuchus
  • † Calyptosuchus wellesi

• 

  † Camposaurus – type locality for genus
  • † Camposaurus arizonensis – type locality for species
• † Camptonectes
  • † Camptonectes A – informal
  • † Camptonectes B – informal
  • † Camptonectes platessa
• † Caprina
• † Caprinuloidea
  • † Caprinuloidea gracilis
• Carota
  • † Carota dalli
• Caryocorbula
  • † Caryocorbula nematophora

• 

  † Ceratodus
• † Cerithioderma
  • † Cerithioderma darcyi – type locality for species
  • † Cerithioderma occidentalis
• Cerithiopsis
  • † Cerithiopsis sohli – type locality for species
• Charonia – tentative report
  • † Charonia kanabense
  • † Charonia soozi – type locality for species
• † Chatterjeea
• † Chindesaurus – type locality for genus
  • † Chindesaurus bryansmalli – type locality for species

• 

  † Chinlea – tentative report
• † Chirotherium
  • † Chirotherium barthii
  • † Chirotherium rex – type locality for species
  • † Chirotherium sickleri
• Chlamys
  • † Chlamys thompsoni
• † Choffaticeras
  • † Choffaticeras pavillieri – or unidentified comparable form
• † Chondrodonta
• † Cibolaites
  • † Cibolaites molenaari
• † Cionichthyes
• † Cionichthys – or unidentified comparable form
• † Coalcomana
  • † Coalcomana ramosa
• † Coelophysis

  • 

    † Coelophysis kayentakatae – type locality for species
• † Collignoniceras
  • † Collignoniceras carolinum – or unidentified related form
  • † Collignoniceras woollgari
• † Colognathus
  • † Colognathus obscurus
• † Colombiceras – tentative report
  • † Colombiceras brumale
• Corbula
  • † Corbula kanabensis
• † Cosgriffius – type locality for genus
  • † Cosgriffius campi – type locality for species
• † Craginia
  • † Craginia turriformis
• † Craniscus
  • † Craniscus hesperius – type locality for species
• Crassatella

• 

  Crassostrea
  • † Crassostrea soleniscus
• † Crosbysaurus
  • † Crosbysaurus harrisae
• Cucullaea
  • † Cucullaea depressa
  • † Cucullaea stephensoni
• † Cunningtoniceras
  • † Cunningtoniceras novimexicanum
• Cuspidaria
  • † Cuspidaria alaeformis
• † Cyclorisma
  • † Cyclorisma orbiculata
• † Cyclothyris
  • † Cyclothyris americana – type locality for species
• Cylichna
• † Cylinodrotruncatum
  • † Cylinodrotruncatum spp.
• † Cymbophora
  • † Cymbophora emmonsi
  • † Cymbophora huerfanensis
  • † Cymbophora utahensis
• † Cyprimeria
  • † Cyprimeria cyprimeriformis

D

• † Dakotacorbula
  • † Dakotacorbula senecta
• † Dechellyia
  • † Dechellyia gormani – type locality for species
• † Dentalium
• † Deshayesites – tentative report
  • † Deshayesites butleri
• † Desmatochelys
  • † Desmatochelys lowi
• † Desmatosuchus
  • † Desmatosuchus haplocerus
  • † Desmatosuchus spurensis
• † Dilophosauripus – type locality for genus
  • † Dilophosauripus williamsi – type locality for species

• 

  † Dilophosaurus
  • † Dilophosaurus wetherilli – type locality for species
• † Dinnebitodon – type locality for genus
  • † Dinnebitodon amarali – type locality for species
• † Dinnetherium – type locality for genus
  • † Dinnetherium nezorum – type locality for species
• Discinisca
• † Dolicholatirus – tentative report
• † Drepanocheilus
  • † Drepanocheilus ruidium
• † Drepanochilus
  • † Drepanochilus ruidium

• 

  † Dromomeron
  • † Dromomeron gregorii
• † Dufrenoyia
  • † Dufrenoyia compitalis
  • † Dufrenoyia joserita
  • † Dufrenoyia justinae

E

• † Edentosuchus – tentative report
  • † Edentosuchus undescribed species – informal
  • † Edentosuchus undescribed species 1 – informal
  • † Edentosuchus undescribed species 2 – informal
• Elliptio
• † Entolium
  • † Entolium gregarium
• † Eoacteon – tentative report
• † Eocaecilia – type locality for genus
  • † Eocaecilia micropodia – type locality for species

• 

  † Eocyclotosaurus
  • † Eocyclotosaurus wellesi – type locality for species
• † Eopneumatosuchus – type locality for genus
  • † Eopneumatosuchus colberti – type locality for species
• † Eucalycoceras
  • † Eucalycoceras pentagonum
• † Eulima – tentative report
  • † Eulima funicula
• † Eunaticina
  • † Eunaticina textilis
• † Euomphaloceras
  • † Euomphaloceras irregulare
  • † Euomphaloceras septemseriatum
• † Euspira
  • † Euspira concinna
  • † Euspira stantoni – type locality for species
• † Exogyra
  • † Exogyra acroumbonata
  • † Exogyra lancha
  • † Exogyra levis
  • † Exogyra olisiponensis

F

• 

  † Fagesia
  • † Fagesia catinus
• † Felixigyra
• † Flemingostrea
  • † Flemingostrea prudentia
• † Fulpia
  • † Fulpia pinguis

G

• † Gemmarcula
  • † Gemmarcula arizonensis – type locality for species
  • † Gemmarcula menardi

• 

  † Gervillia
  • † Gervillia cholla
  • † Gervillia heinemani
  • † Gervillia navajovus – type locality for species
  • † Gervillia rasori
• Ginkgo
• † Grallator
  • † Grallator cursorius
• † Granocardium
  • † Granocardium trite
• † Graphidula
  • † Graphidula walcotti
• † Gregania – tentative report

• 

  † Gryphaea
• † Gryphaeostrea
  • † Gryphaeostrea elderi – type locality for species
  • † Gryphaeostrea nationsi – type locality for species
• Gyrodes
  • † Gyrodes conradi
  • † Gyrodes depressa
  • † Gyrodes tramitensis – or unidentified comparable form
• † Gyrolepis
• † Gyrotropis
  • † Gyrotropis nationsi – type locality for species

H

• 

  † Hadrokkosaurus – type locality for genus
  • † Hadrokkosaurus bradyi – type locality for species
• † Hamites
  • † Hamites simplex
• † Hamulus
• Hemiaster
  • † Hemiaster jacksoni – or unidentified comparable form
• † Hesperosuchus – type locality for genus
  • † Hesperosuchus agilis – type locality for species
• Homarus
• † Hopiichnus – type locality for genus
  • † Hopiichnus shingi – type locality for species
• † Hybodus

I

• † Immunitoceras
  • † Immunitoceras immunitum

• 

  † Inoceramus
  • † Inoceramus corpulentas
  • † Inoceramus dimidius – or unidentified comparable form
  • † Inoceramus flavus
  • † Inoceramus heinzi – or unidentified related form
  • † Inoceramus lamarcki
  • † Inoceramus nodai
  • † Inoceramus pictus
  • † Inoceramus tenuistriatus() – tentative report
• † Isochirotherium
  • † Isochirotherium coltoni – type locality for species
  • † Isochirotherium marshalli

K

• † Kamerunoceras
  • † Kamerunoceras turoniense

• 

  † Kayentachelys – type locality for genus
  • † Kayentachelys aprix – type locality for species
• † Kayentapus – type locality for genus
  • † Kayentapus hopii – type locality for species
• † Kayentasuchus – type locality for genus
  • † Kayentasuchus walkeri – type locality for species
• † Kayentatherium – type locality for genus
  • † Kayentatherium wellesi – type locality for species

• 

  † Kayentavenator – type locality for genus
  • † Kayentavenator elysiae – type locality for species
• † Kazanskyella
  • † Kazanskyella arizonica
• † Koskinonodon
  • † Koskinonodon perfectus
• † Koupichnium – probable lapsus calami of Kouphichnium ^{[ citation needed ]}
• † Kraterokheirodon – type locality for genus
  • † Kraterokheirodon colberti – type locality for species
• † Kummelonautilus

L

• † Lasalichthys – or unidentified comparable form
• Laternula
  • † Laternula lineata
• † Legumen
  • † Legumen ligula – or unidentified comparable form
• Lepisosteus

• 

  † Leptosuchus
  • † Leptosuchus crosbiensis
• † Levicerithium
  • † Levicerithium basicostae
  • † Levicerithium micronema – tentative report
  • † Levicerithium timberanum – or unidentified comparable form
• Lima
  • † Lima cholla
  • † Lima espinal
  • † Lima muralensis
  • † Lima utahensis
• Limatula
  • † Limatula kochi
• † Linearis
  • † Linearis striatimarginata
  • † Linearis whitei
• † Lingula
  • † Lingula subspatula
• † Liopistha
  • † Liopistha meeki

• 

  † Lissodus – tentative report
• † Lithocodium
• Lithophaga
• † Lonchidion
  • † Lonchidion humblei
• † Longitubus
• Lopha
  • † Lopha bellaplicata
  • † Lopha staufferi
• † Lucina
  • † Lucina subundata

• 

  Lunatia – tentative report
• † Lutema
  • † Lutema hitzi

M

• 

  † Machaeroprosopus – type locality for genus
  • † Machaeroprosopus buceros
  • † Machaeroprosopus jablonskiae – type locality for species
  • † Machaeroprosopus mccauleyi – type locality for species
  • † Machaeroprosopus pristinus – type locality for species
  • † Machaeroprosopus tenuis – type locality for species
  • † Machaeroprosopus validus – type locality for species
• † Mammillopora
  • † Mammillopora encrusta – type locality for species
• † Mammites
  • † Mammites nodosoides
• † Masculostrobus
  • † Masculostrobus clathratus – type locality for species
• † Mathilia – tentative report
  • † Mathilia ripleyana
• † Meekia
• † Megalosauripus
• † Melvius
• Membranipora – or unidentified comparable form
• † Mesolanites
• † Mesostoma
• † Metaptychoceras
  • † Metaptychoceras reesidei
• † Metoicoceras
  • † Metoicoceras geslinianum
  • † Metoicoceras mosbyense

• 

  † Metoposaurus
  • † Metoposaurus fraasi – type locality for species
• † Microsolena
  • † Microsolena texana
• † Modiolus
  • † Modiolus attenuatus – or unidentified comparable form
  • † Modiolus coloradoensis
  • † Modiolus perryi – type locality for species
• † Moenkopia – type locality for genus
  • † Moenkopia wellesi – type locality for species
• † Monopleura
  • † Monopleura marcida – or unidentified comparable form
• † Moremanoceras
  • † Moremanoceras scotti

• 

  † Morganucodon
• † Morrowites
• † Mytiloides
  • † Mytiloides columbianus
  • † Mytiloides duplicostasus – or unidentified related form
  • † Mytiloides hercynicus
  • † Mytiloides kossmati
  • † Mytiloides labiatus
  • † Mytiloides latus – or unidentified comparable form
  • † Mytiloides mytiloides
  • † Mytiloides opalensis
  • † Mytiloides submytiloides
• † Mytilus – tentative report

N

• † Nannometoicoceras
  • † Nannometoicoceras acceleratum
• † Navahopus – type locality for genus
  • † Navahopus falcipollex – type locality for species
• † Neithea
  • † Neithea vicinalis
• † Nemodon
• † Neocardioceras
  • † Neocardioceras juddii
  • † Neocardioceras minutum
• † Neoptychites
  • † Neoptychites cephalotus

• 

  † Nerinea
• Nerita
  • † Nerita spp.
• Neritina
  • † Neritina spp.
• † Nigericeras
  • † Nigericeras ogojaense – or unidentified comparable form
• Nucula
  • † Nucula coloradoensis
• Nuculana
  • † Nuculana mutuata

O

• † Obnixia – type locality for genus
  • † Obnixia thaynesiana

• 

  † Oligokyphus
• † Opis
  • † Opis elevata
• † Orbitolina
  • † Orbitolina texana
• Ostrea
  • † Ostrea anomioides
  • † Ostrea edwilsoni
• † Oxytoma
  • † Oxytoma arizonensis – type locality for species

P

• † Pachyrhizodus – or unidentified comparable form
• † Paleopsephea
  • † Paleopsephea arizonensis – type locality for species
• † Paracanthohoplites
  • † Paracanthohoplites meridionalis
• † Parasimilia
  • † Parasimilia spp.

• 

  † Parasuchus
• † Paratypothorax
• † Parmicorbula
• † Parrishea
• † Parrishia – type locality for genus
  • † Parrishia mccreai – type locality for species
• Parvilucina
  • † Parvilucina juvenis
• † Pecten
  • † Pecten peregrina
• † Perissoptera
  • † Perissoptera prolabiata
• † Permocalculus
• Petrophyllia
  • † Petrophyllia dartoni
• † Pharodina
  • † Pharodina ferrana
• † Phelopteria
  • † Phelopteria A – informal
  • † Phelopteria B – informal
  • † Phelopteria C – informal
  • † Phelopteria dalli
  • † Phelopteria E – informal
  • † Phelopteria F – informal
  • † Phelopteria gastrodes
  • † Phelopteria minuta
• † Phoebodus
• Pholadomya
  • † Pholadomya coloradoensis
• Physa
  • † Physa reesidei – or unidentified comparable form
• † Pinna
  • † Pinna kauffmani – type locality for species
  • † Pinna petrina
• † Pirsilia
• † Placenticeras
  • † Placenticeras cumminsi

• 

  † Placerias – type locality for genus
  • † Placerias hesternus – type locality for species
• † Plastomenus
• † Pleisiopinna – tentative report
• † Pleisopinna – tentative report
• † Pleuriocardia
  • † Pleuriocardia pauperculum
• Plicatula
  • † Plicatula ferryi
  • † Plicatula hydrotheca
• † Pollex – tentative report
• Polydora – tentative report
• † Polystrata
  • † Polystrata alba
• † Polytremacis

• 

  † Poposaurus
  • † Poposaurus gracilis
• Poromya
  • † Poromya lohaliensis – type locality for species
• † Postosuchus
  • † Postosuchus kirkpatricki
• † Pravusuchus
  • † Pravusuchus hortus
• † Prionocyclus
  • † Prionocyclus hyatti
  • † Prionocyclus percarinatus
• † Procolophonichnium

• 

  † Prosalirus – type locality for genus
  • † Prosalirus bitis – type locality for species
• † Protelliptio – tentative report
• † Protome – type locality for genus
  • † Protome batalaria – type locality for species
• † Protosuchus – type locality for genus
  • † Protosuchus richardsoni – type locality for species
• † Pseudaspidoceras
  • † Pseudaspidoceras flexuosum
  • † Pseudaspidoceras pseudonodosoides
• † Pseudocalycoceras
  • † Pseudocalycoceras angolaense
• † Pseudoperna
  • † Pseudoperna bentonense
  • † Pseudoperna bentonensis
• † Pseudopetalodontia
  • † Pseudopetalodontia felixi
• † Pseudoptera
  • † Pseudoptera propleura
• † Psilomya
  • † Psilomya concentrica
  • † Psilomya elongata
  • † Psilomya meeki
• † Psilothyris
  • † Psilothyris occidentalis
• † Pteraichnus – type locality for genus
  • † Pteraichnus saltwashensis – type locality for species
• † Puebloites
  • † Puebloites greenhornensis
  • † Puebloites spiralis
• Pycnodonte
  • † Pycnodonte kansasense – tentative report
  • † Pycnodonte kellumi – or unidentified related form
  • † Pycnodonte newberryi
• † Pyktes
  • † Pyktes fusiformis
• † Pyncnodonte
  • † Pyncnodonte kellumi – or unidentified related form
  • † Pyncnodonte newberryi
• † Pyrgulifera
  • † Pyrgulifera ornata
• † Pyropsis
  • † Pyropsis coloradoensis – or unidentified comparable form
  • † Pyropsis kochi – type locality for species

Q

• † Quasicyclotosaurus – type locality for genus
  • † Quasicyclotosaurus campi – type locality for species
• † Quitmaniceras
  • † Quitmaniceras reaseri – or unidentified comparable form

R

• † Radiolites
• Ramphonotus – or unidentified comparable form
• † Rectithyris
  • † Rectithyris vespertina – type locality for species
• † Reticulodus – type locality for genus
  • † Reticulodus synergus – type locality for species

• 

  † Revueltosaurus
  • † Revueltosaurus callenderi
  • † Revueltosaurus hunti
• † Rhadalognathus – type locality for genus
  • † Rhadalognathus boweni – type locality for species
• † Rhamphinion – type locality for genus
  • † Rhamphinion jenkinsi – type locality for species
• † Rhombopsis – tentative report
  • † Rhombopsis huerfanensis
• † Rhynchosauroides
  • † Rhynchosauroides schochardti
• † Rhynchostreon
  • † Rhynchostreon levis

• 

  Ringicula
  • † Ringicula codellana
• † Rioarribasuchus
  • † Rioarribasuchus chamaensis
• Rostellaria
  • † Rostellaria venenatus – tentative report
• † Rotodactylus – type locality for genus
  • † Rotodactylus bradyi – type locality for species
  • † Rotodactylus cursorius – type locality for species
• † Rubroceras
  • † Rubroceras rotundum

• 

  † Rutiodon

S

• 

  † Sarahsaurus – type locality for genus
  • † Sarahsaurus aurifontanalis – type locality for species
• Scalpellum – tentative report
• † Scaphites
  • † Scaphites larvaeformis
• † Sciponoceras
  • † Sciponoceras gracile
• † Scutarx – type locality for genus
  • † Scutarx deltatylus – type locality for species
• † Scutellosaurus – type locality for genus
  • † Scutellosaurus lawleri – type locality for species
• † Segisaurus – type locality for genus
  • † Segisaurus halli – type locality for species
• † Selaginella
  • † Selaginella anasazia – type locality for species

• 

  † Semionotus – or unidentified comparable form
• † Senis
  • † Senis elongatus
• † Sergipia
  • † Sergipia hartti – tentative report
• Serpula
  • † Serpula implicata
  • † Serpula intrica
  • † Serpula large
• † Shuvosaurus
  • † Shuvosaurus inexpectatus
• † Sinzowiella
  • † Sinzowiella spathi
• † Smilosuchus – type locality for genus
  • † Smilosuchus adamanensis – type locality for species
  • † Smilosuchus gregorii – type locality for species
  • † Smilosuchus lithodendrorum – type locality for species
• Solemya
  • † Solemya obscura

• 

  † Sonorasaurus – type locality for genus
  • † Sonorasaurus thompsoni – type locality for species
• † Spathites
  • † Spathites puercoensis
• Spirorbis
• Squilla – tentative report
• † Stagonolepis
• † Stanocephalosaurus – type locality for genus
  • † Stanocephalosaurus birdi – type locality for species
  • † Stanocephalosaurus new species – informal
• † Stoliczkaia
  • † Stoliczkaia scotti
• † Stomohamites
• † Stylocyathus
• † Sumitomoceras
  • † Sumitomoceras conlini
• † Synaptichnium
  • † Synaptichnium cameronensis – type locality for species
  • † Synaptichnium diabloensis – type locality for species
• † Syncyclonema
  • † Syncyclonema spp.
• † Syntarsus

T

• † Tanytrachelos
• † Tecovasaurus
  • † Tecovasaurus murryi
• † Tecovasuchus
  • † Tecovasuchus chatterjeei
• † Tectaplica – tentative report
  • † Tectaplica utahensis
• Tellina
  • † Tellina carlilana – type locality for species
• † Tenea

• 

  † Tenontosaurus
• † Terebrimya
• Teredolithus
• † Therapsipus – type locality for genus
  • † Therapsipus cumminsi – type locality for species
• † Thomasites
  • † Thomasites gongilensis – or unidentified comparable form
• † Toucasia
  • † Toucasia hancockensis
• † Tragodesmoceras
  • † Tragodesmoceras bassi
  • † Tragodesmoceras socorroense
• † Triasamnicola – or unidentified comparable form
  • † Triasamnicola pilsbryi
• † Trigonia
  • † Trigonia aliformis - or unidentified loosely related form
  • † Trigonia cragini
  • † Trigonia guildi
  • † Trigonia kitchini
  • † Trigonia mearnsi
  • † Trigonia reesidei
  • † Trigonia resoluta
  • † Trigonia saavedra
  • † Trigonia stolleyi
  • † Trigonia weaveri

• 

  † Trilophosaurus
  • † Trilophosaurus buettneri
  • † Trilophosaurus jacobsi – type locality for species
• † Triodus
  • † Triodus moorei
• Trochocyathus
• Turritella
  • † Turritella A – informal
  • † Turritella B – informal
  • † Turritella cobbani – type locality for species
  • † Turritella codellana – type locality for species
  • † Turritella kauffmani – type locality for species
  • † Turritella whitei
• † Turseodus
  • † Turseodus dolorensis – or unidentified comparable form

• 

  † Typothorax
  • † Typothorax coccinarum

U

• † Uatchitodon
  • † Uatchitodon schneideri
• † Unicardium
• Unio

V

• 

  † Vancleavea – type locality for genus
  • † Vancleavea campi – type locality for species
• † Vascoceras
  • † Vascoceras diartianum
• † Veniella
  • † Veniella goniophora
  • † Veniella mortoni
• † Vigilius
  • † Vigilius wellesi
• Viviparus
• † Voysa
  • † Voysa varia
• Vulsella

W

• † Watinoceras
  • † Watinoceras coloradoense
  • † Watinoceras devonense
  • † Watinoceras hattini
  • † Watinoceras praecursor – or unidentified comparable form
  • † Watinoceras spp.
• † Weeksia
• † Wellesaurus
  • † Wellesaurus peabodyi – type locality for species
• † Worthoceras
  • † Worthoceras gibbosum
  • † Worthoceras vermiculum

Y

• † Yezoites
  • † Yezoites delicatulus

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.