# List of the prehistoric life of Arizona

This list of the prehistoric life of Arizona contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Arizona.

## Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Arizona.

## Paleozoic
### Selected Paleozoic taxa of Arizona

* †Achistrum
* †Aglaocrinus
* †Altudoceras
* †Alula
* †Amphiscapha
* †Annularia
** †Annularia asteris
** †Annularia mucronata
** †Annularia stellata
* †Anomphalus
* †Aphyllopteris
* †Arastra – type locality for genus
* †Archaeocidaris
* Fossils of the Carboniferous-Permian bryozoan Archimedes †Archimedes
** †Archimedes intermedius
** †Archimedes invaginatus
** †Archimedes lativolvis
** †Archimedes proutanus
** †Archimedes terebriformis
* †Arizonerpeton – type locality for genus
* †Athyris
* †Aulopora
* †Aviculopecten
** †Aviculopecten bellatulus – type locality for species
** †Aviculopecten girtyi – or unidentified comparable form
** †Aviculopecten kaibabensis – type locality for species
* †Bellerophon
* †Brachyphyllum
* Fossilized stems from the Carboniferous-Permian horsetail relative Calamites †Calamites
** †Calamites cisti
* †Callipteris
** †Callipteris conferta
* †Camarotoechia
** †Camarotoechia metallica
** †Camarotoechia mutata
* †Caninia – tentative report
* †Chonetes
** †Chonetes oklahomensis
* †Cleiothyridina
** †Cleiothyridina orbicularis
* Fossilized shell of the Late Devonian-Permian brachiopod Composita †Composita
** †Composita humilis
** †Composita laevis
** †Composita mexicana
** †Composita ovata
** †Composita ozarkana
** †Composita subtilita
** †Composita trinuclea
* †Cooksonia – or unidentified comparable form
* †Cordaites
** †Cordaites principalis
* †Cycloceras
* †Cyclopteris
* †Cymatochiton – tentative report
* Fossilized shells of the Middle-Late Devonian brachiopod Cyrtospirifer †Cyrtospirifer
** †Cyrtospirifer whitneyi
* †Cystodictya
* †Echinaria
* †Edmondia
* †Elfridia – type locality for genus
* †Elrathia
* Eocaudina
* †Euomphalus
** †Euomphalus utahensis
* †Fenestella
* †Fusulina
* Life restoration of the Carboniferous shark Glikmanius †Glikmanius
** †Glikmanius occidentalis
* †Globular
* †Gnathorhiza – or unidentified comparable form
* †Hastimima – tentative report
* †Hedeia
* †Hexagonaria
* †Hyolithes
* †Icriodus
* †Idiognathodus
* †Kaibabvenator – type locality for genus
** †Kaibabvenator swiftae – type locality for species
* †Kootenia
* †Lepidodendron
** †Lepidodendron aculeatum
* †Lepidostrobus
* †Lingula
* †Lingulella
* †Liroceras
* Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras †Metacoceras
* †Michelina
* †Modiolus
* †Murchisonia
* †Naticopsis
** †Naticopsis kaibabensis – type locality for species
** †Naticopsis waterlooensis
* †Neospirifer – tentative report
** †Neospirifer dunbari
* †Neuropteris
** †Neuropteris heterophylla
** †Neuropteris scheuchzeri
* †Nisusia
* Nucula
* Restoration of the Cambrian trilobite Olenellus †Olenellus
* †Ophiderpeton
* †Orodus
* †Orthacanthus
* †Pachyphyllum
* †Pagiophyllum
* †Paladin
* †Palmatolepis
** †Palmatolepis triangularis
* †Paterina
* †Pecopteris
* †Pentremites
* †Petalodus
* †Phillipsia
* Life restoration of the Carboniferous-Permian amphibian Phlegethontia. †Phlegethontia
* †Pinna
* †Platyceras
* †Polygnathus
* †Prodentalium
* †Ptyonius – tentative report
* †Rugosa
* †Sallya – tentative report
* †Scoyenia
* Serpula
* Solemya
* †Solenomorpha – report made of unidentified related form or using admittedly obsolete nomenclature
* †Spathognathodus
* Fossilized leaves and branches of the Devonian-Triassic horsetail relative Sphenophyllum †Sphenophyllum
** †Sphenophyllum gilmorei – type locality for species
** †Sphenophyllum oblongifolium
* †Sphenopteris
* †Spirifer
** †Spirifer centronatus
* †Spiriferina
* †Stigmaria
* †Stroboceras
* †Syringopora
* †Tainoceras
* Life restoration of the Carboniferous-Triassic freshwater shark Triodus †Triodus
* †Venustodus
* †Vidria
* †Walchia
* †Wardia
* †Wilkingia
* †Worthenia
* †Yarravia
* Yoldia

## Mesozoic
### Selected Mesozoic taxa of Arizona

* †Acaenasuchus – type locality for genus
** †Acaenasuchus geoffreyi – type locality for species
* †Acallosuchus – type locality for genus
** †Acallosuchus rectori – type locality for species
* Fossilized shell of the Early Cretaceous ammonoid cephalopod Acanthohoplites †Acanthohoplites
** †Acanthohoplites berkeyi
** †Acanthohoplites erraticus
** †Acanthohoplites hesper
** †Acanthohoplites impetrabilis
** †Acanthohoplites schucherti
** †Acanthohoplites teres
* Acirsa
* Acmaea
* †Acrodus
* †Acteon
* †Adamanasuchus – type locality for genus
** †Adamanasuchus eisenhardtae – type locality for species
* †Adocus
* †Allocrioceras
* †Ammorhynchus – type locality for genus
** †Ammorhynchus navajoi – type locality for species
* †Anaschisma – report made of unidentified related form or using admittedly obsolete nomenclature
* †Angistorhinus – tentative report
* †Anisoceras
* †Anomia
* †Apachesaurus
** †Apachesaurus gregorii
* †Apatosaurus
* †Araucarioxylon
** Petrified trunk segments of the Permian-Late Triassic conifer tree Araucarioxylon arizonicum †Araucarioxylon arizonicum
* †Arca
* Arctica
* †Arganodus
* †Arizonasaurus – type locality for genus
** †Arizonasaurus babbitti – type locality for species
* Astarte
* †Australosomus – or unidentified comparable form
* †Baculites
** †Baculites calamus
* Barbatia
* †Beudanticeras
* †Boreosomus – tentative report
* Cadulus
* †Calamites
* †Calamophylliopsis
* †Calsoyasuchus – type locality for genus
** †Calsoyasuchus valliceps – type locality for species
* †Calycoceras
* †Calyptosuchus
** †Calyptosuchus wellesi
* Restoration of the Late Triassic theropod dinosaur Camposaurus †Camposaurus – type locality for genus
** †Camposaurus arizonensis – type locality for species
* †Caprina
* Carota
* †Ceratodus
* Cerithiopsis
* Charonia – tentative report
* †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
* †Cibolaites
* †Coelophysis
** Life restoration of Coelophysis kayentakatae †Coelophysis kayentakatae – type locality for species
* †Collignoniceras
** †Collignoniceras woollgari
* †Colognathus
* Corbula
* †Cosgriffius – type locality for genus
* †Craniscus
* Crassostrea
* †Crosbysaurus
** †Crosbysaurus harrisae
* Cucullaea
* †Cunningtoniceras
* Cuspidaria
* †Cyclothyris
* Cylichna
* †Dentalium
* †Desmatochelys
* †Desmatosuchus
** †Desmatosuchus haplocerus
** †Desmatosuchus spurensis
* †Dilophosauripus – type locality for genus
* Life restoration of the Early Jurassic theropod dinosaur Dilophosaurus resting †Dilophosaurus
** †Dilophosaurus wetherilli – type locality for species
* †Dinnebitodon – type locality for genus
** †Dinnebitodon amarali – type locality for species
* Discinisca
* †Dolicholatirus – tentative report
* †Dromomeron
** †Dromomeron gregorii
* †Dufrenoyia
** †Dufrenoyia compitalis
** †Dufrenoyia joserita
** †Dufrenoyia justinae
* †Edentosuchus – tentative report
* Elliptio
* Life restoration of the Early Jurassic amphibian Eocaecilia †Eocaecilia – type locality for genus
** †Eocaecilia micropodia – type locality for species
* †Eocyclotosaurus
* †Eopneumatosuchus – type locality for genus
** †Eopneumatosuchus colberti – type locality for species
* †Eucalycoceras
* †Eulima – tentative report
* †Eunaticina
* †Euomphaloceras
* †Euspira
* †Exogyra
** †Exogyra acroumbonata
** †Exogyra lancha
** †Exogyra levis
** †Exogyra olisiponensis
* †Fagesia
* Fossilized shell of the Carboniferous-Eocene bivalve Gervillia †Gervillia
** †Gervillia cholla
** †Gervillia heinemani
** †Gervillia navajovus – type locality for species
** †Gervillia rasori
* Ginkgo
* †Grallator
* †Gryphaea
* †Gyrolepis
* †Hadrokkosaurus – type locality for genus
** †Hadrokkosaurus bradyi – type locality for species
* †Hamites
* †Hamulus
* †Hesperosuchus – type locality for genus
** †Hesperosuchus agilis – type locality for species
* Homarus
* †Hopiichnus – type locality for genus
* †Hybodus
* Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size †Inoceramus
** †Inoceramus corpulentas
** †Inoceramus dimidius – or unidentified comparable form
** †Inoceramus flavus
** †Inoceramus heinzi – or unidentified related form
** †Inoceramus lamarcki
** †Inoceramus nodai
** †Inoceramus pictus
* †Kamerunoceras
* †Kayentachelys – type locality for genus
** †Kayentachelys aprix – type locality for species
* †Kayentapus – type locality for genus
* †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
* †Koskinonodon
* Lepisosteus
* Fossilized skull of the Late Triassic phytosaur Leptosuchus †Leptosuchus
** †Leptosuchus crosbiensis
* Lima
* Limatula
* †Linearis
* †Lingula
* †Lissodus – tentative report
* Lithophaga
* †Lonchidion
* Lopha
* †Lucina
* Lunatia – tentative report
* Life restoration of the Late Triassic phytosaur Machaeroprosopus †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
* †Mammites
* †Megalosauripus
* †Melvius
* Membranipora – or unidentified comparable form
* †Metoicoceras
** †Metoicoceras geslinianum
** †Metoicoceras mosbyense
* Life restoration of the Late Triassic amphibian Metoposaurus with an anachronistic human to scale †Metoposaurus
* †Modiolus
* †Moenkopia – type locality for genus
* †Monopleura
* †Morganucodon
* †Morrowites
* †Mytilus – tentative report
* †Navahopus – type locality for genus
* †Neithea
* †Neocardioceras
** †Neocardioceras juddii
** †Neocardioceras minutum
* †Neoptychites
* †Nerinea
* Nerita
* Neritina
* Nucula
* Restoration of the Late Triassic–Early Jurassic synapsid (mammal precursor) Oligokyphus †Oligokyphus
* †Opis
* Ostrea
* †Oxytoma
* †Pachyrhizodus – or unidentified comparable form
* †Parasuchus
* †Paratypothorax
* †Parrishia – type locality for genus
* †Pecten
* †Permocalculus
* Pholadomya
* Physa
* †Pinna
* †Placenticeras
** †Placenticeras cumminsi
* Restoration of the Late Triassic synapsid (mammal precursor) Placerias with an anachronistic human to scale †Placerias – type locality for genus
** †Placerias hesternus – type locality for species
* Plicatula
* † Pollex – tentative report
* Polydora – tentative report
* †Poposaurus
** †Poposaurus gracilis
* †Postosuchus
** †Postosuchus kirkpatricki
* †Pravusuchus
** †Pravusuchus hortus
* Life restoration of the Early Jurassic frog Prosalirus †Prosalirus – type locality for genus
** †Prosalirus bitis – type locality for species
* †Protome – type locality for genus
** †Protome batalaria – type locality for species
* †Protosuchus – type locality for genus
** †Protosuchus richardsoni – type locality for species
* †Pseudoperna
* †Pteraichnus – type locality for genus
** †Pteraichnus saltwashensis – type locality for species
* Pycnodonte
** †Pycnodonte kellumi – or unidentified related form
** †Pycnodonte newberryi
* †Pyncnodonte
* †Quasicyclotosaurus – type locality for genus
** †Quasicyclotosaurus campi – type locality for species
* †Quitmaniceras
* Life restoration of the Late Triassic crocodile relative Revueltosaurus †Revueltosaurus
** †Revueltosaurus callenderi
** †Revueltosaurus hunti
* †Rhadalognathus – type locality for genus
* †Rhamphinion – type locality for genus
** †Rhamphinion jenkinsi – type locality for species
* Ringicula
* †Rioarribasuchus
** †Rioarribasuchus chamaensis
* Rostellaria
* †Rutiodon
* †Sarahsaurus – type locality for genus
* †Scaphites
* †Scutarx – type locality for genus
* Life restoration of the Early Jurassic primitive armored dinosaur Scutellosaurus †Scutellosaurus – type locality for genus
** †Scutellosaurus lawleri – type locality for species
* †Segisaurus – type locality for genus
** †Segisaurus halli – type locality for species
* †Selaginella
* †Semionotus – or unidentified comparable form
* †Senis
* Serpula
* †Shuvosaurus
** †Shuvosaurus inexpectatus
* †Smilosuchus – type locality for genus
** †Smilosuchus adamanensis – type locality for species
** †Smilosuchus gregorii – type locality for species
** †Smilosuchus lithodendrorum – type locality for species
* Solemya
* Life restoration of the Early-Late Cretaceous brachiosaur Sonorasaurus †Sonorasaurus – type locality for genus
** †Sonorasaurus thompsoni – type locality for species
* Spirorbis
* Squilla – tentative report
* †Stagonolepis
* †Stanocephalosaurus – type locality for genus
** †Stanocephalosaurus birdi – type locality for species
* †Syntarsus
* †Tanytrachelos
* †Tecovasaurus
** †Tecovasaurus murryi
* †Tecovasuchus
** †Tecovasuchus chatterjeei
* Tellina
* †Tenea
* Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus †Tenontosaurus
* †Thomasites
* †Tragodesmoceras
* †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
* Turritella
* Restoration of a pair of the Late Triassic aetosaur Typothorax †Typothorax
* †Uatchitodon
** †Uatchitodon schneideri
* Unio
* †Vancleavea – type locality for genus
** †Vancleavea campi – type locality for species
* †Vascoceras
* †Vigilius
** †Vigilius wellesi
* Viviparus
* Vulsella
* †Watinoceras
** †Watinoceras coloradoense
** †Watinoceras devonense
** †Watinoceras hattini
** †Watinoceras praecursor – or unidentified comparable form
* †Wellesaurus
** †Wellesaurus peabodyi – type locality for species
* †Yezoites

## Cenozoic
### Selected Cenozoic taxa of Arizona

* †Adelphailurus
* †Agriotherium
* †Alforjas
* †Ambystoma
** †Ambystoma tigrinum
* Fossilized skull of the Miocene saber-toothed cat Amphimachairodus †Amphimachairodus
* †Amplibuteo
* Antrozous
** †Antrozous pallidus
* Aquila
* †Arctodus
* †Aztlanolagus
* Baiomys
* Bassariscus
* Bison
* †Borophagus
** †Borophagus diversidens
** †Borophagus parvus – type locality for species
* Brachylagus
* Bufo
** †Bufo woodhousei
* Life restoration of the Pliocene-Holocene camel Camelops †Camelops
** †Camelops hesternus – or unidentified comparable form
* Canis
** †Canis armbrusteri
** †Canis dirus
** †Canis edwardii
** †Canis ferox
** †Canis latrans
* †Capromeryx
* †Carpocyon
* Castor
* Celtis
** †Celtis reticulata
* Cervus
* †Chasmaporthetes
* †Chrysocyon
* †Citellus
* Cnemidophorus
* Cratogeomys
* Crotaphytus – or unidentified comparable form
* Life restoration of the Pliocene-Holocene elephant relative Cuvieronius †Cuvieronius
* Desmodus
** †Desmodus stocki
* †Diceratherium
* †Dinohippus
* Dipodomys
* †Dipoides
* †Epicyon
** †Epicyon haydeni
* Eptesicus – or unidentified comparable form
* Equus
** Restoration of the Pliocene-Holocene horse Equus scotti, or Scott's horse †Equus scotti – or unidentified comparable form
** †Equus simplicidens
* Erethizon
* †Eucyon
** †Eucyon davisi
* Eumeces
* Eumops
** †Eumops perotis – or unidentified comparable form
* †Geococcyx
** †Geococcyx californianus
* Geomys
* †Glossotherium
* Mounted fossilized skeleton of the Pleistocene armadillo relative Glyptotherium †Glyptotherium
** †Glyptotherium texanum
* †Hemiauchenia
* †Hesperotestudo
* Heterodon
** †Heterodon nasicus – or unidentified comparable form
* †Histiotus
* †Homotherium – tentative report
* Hyla
* †Hypolagus
* Ictalurus – tentative report
* Fossilized skull of the Miocene bear Indarctos †Indarctos – tentative report
* Kinosternon
** †Kinosternon arizonense – type locality for species
* Lampropeltis
** †Lampropeltis getulus
* Lasiurus
** †Lasiurus blossevillii – or unidentified comparable form
* Lemmiscus
** †Lemmiscus curtatus
* Lepus
* Lynx
* †Machairodus
* †Mammut
* †Mammuthus
** Mounted fossilized skeleton of a Mammuthus columbi or Columbian mammoth †Mammuthus columbi
* Marmota
* Martes
* †Megalonyx
** †Megalonyx jeffersonii
* †Megatylopus
* Meleagris
* †Merychyus
* †Metalopex
* Microtus
* †Morrillia
* Mustela
** †Mustela frenata – or unidentified comparable form
* Myotis
** †Myotis thysanodes
** †Myotis velifer
* †Nannippus
* †Neochoerus
* Neotoma
** †Neotoma albigula – or unidentified comparable form
** †Neotoma cinerea
** †Neotoma mexicana – or unidentified comparable form
* Nerodia
* Life restoration of the Pleistocene ground sloth Nothrotheriops †Nothrotheriops
* †Nothrotherium
* Notiosorex
** †Notiosorex crawfordi
* Odocoileus
* Ondatra
** †Ondatra zibethicus
* †Onychocampodea – type locality for genus
* †Onychomachilis – type locality for genus
* Onychomys
* Ovis
** †Ovis canadensis – type locality for species
* Panthera
** A living Panthera leo, or lion †Panthera leo
* †Paramachaerodus
* †Paramylodon
** †Paramylodon harlani
* †Paronychomys
* Perognathus
* Peromyscus
* Pituophis
** †Pituophis melanoleucus
* Mounted fossilized skeleton of the Miocene-Pleistocene peccary Platygonus †Platygonus
** †Platygonus compressus
* †Pleiolama
* †Plesiogulo
* †Plionarctos
* †Protolabis
* †Pseudaelurus – report made of unidentified related form or using admittedly obsolete nomenclature
* Ptinus
* †Rana
* Reithrodontomys
* †Repomys
* Restoration of the Miocene-Pliocene elephant relative Rhynchotherium †Rhynchotherium
* Scaphiopus
* Sciurus
** †Sciurus aberti – or unidentified comparable form
* Sigmodon
* Sorex
* Spermophilus
** †Spermophilus variegatus
* Spilogale
** †Spilogale putorius
* Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon †Stegomastodon
** †Stegomastodon mirificus
* †Stenomylus
* †Stockoceros
* Sylvilagus
** †Sylvilagus audubonii – or unidentified comparable form
* Tapirus
** †Tapirus merriami – or unidentified comparable form
* Taxidea
** †Taxidea taxus
* Tayassu
** †Tayassu tajacu
* †Teleoceras
* Terrapene
** †Terrapene ornata – or unidentified comparable form
* Restoration of the Pleictocene pronghorn Tetrameryx †Tetrameryx – or unidentified comparable form
* Thamnophis
* Thomomys
* †Titanotylopus
** †Trigonictis macrodon
* Urocyon
* Vulpes
** †Vulpes velox