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.

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
 * Fenestellidae - Archimedes species.JPG]] †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
 * Calamites stems.JPG †[[Calamites]]
 * †Calamites cisti
 * †Callipteris
 * †Callipteris conferta
 * †Camarotoechia
 * †Camarotoechia metallica
 * †Camarotoechia mutata
 * †Caninia – tentative report
 * †Chonetes
 * †Chonetes oklahomensis
 * †Cleiothyridina
 * †Cleiothyridina orbicularis
 * Compositafossil.jpg †[[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
 * Cyrtospirifer verneuili duo.jpg †[[Cyrtospirifer]]
 * †Cyrtospirifer whitneyi
 * †Cystodictya
 * †Echinaria
 * †Edmondia
 * †Elfridia – type locality for genus
 * †Elrathia
 * Eocaudina
 * †Euomphalus
 * †Euomphalus utahensis
 * †Fenestella
 * †Fusulina
 * Glikmanius1DB.jpg †[[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
 * Metacoceras discoideum 01.jpg †[[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
 * Olenellus NT small.jpg †[[Olenellus]]
 * †Ophiderpeton
 * †Orodus
 * †Orthacanthus
 * †Pachyphyllum
 * †Pagiophyllum
 * †Paladin
 * †Palmatolepis
 * †Palmatolepis triangularis
 * †Paterina
 * †Pecopteris
 * †Pentremites
 * †Petalodus
 * †Phillipsia
 * Phlegethontia.jpg †[[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
 * Sphenophyllum miravallis cropped.jpg †[[Sphenophyllum]]
 * †Sphenophyllum gilmorei – type locality for species
 * †Sphenophyllum oblongifolium
 * †Sphenopteris
 * †Spirifer
 * †Spirifer centronatus
 * †Spiriferina
 * †Stigmaria
 * †Stroboceras
 * †Syringopora
 * †Tainoceras
 * Triodus1db.jpg †[[Triodus]]
 * †Venustodus
 * †Vidria
 * †Walchia
 * †Wardia
 * †Wilkingia
 * †Worthenia
 * †Yarravia
 * Yoldia

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
 * Douvilleiceratidae - Acanthohoplites hannoverensis.JPG †[[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
 * [[File:Araucarioxylon arizonicum (petrified wood) - National Museum of Natural History, United States - DSC08540.JPG|thumb|upright=0.74|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
 * Camposaurus arizonensis.png †[[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
 * SyntarsusDB.jpg †[[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
 * Dilophosaurus in bird-like resting pose.jpg †[[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
 * Eocaecilia BW.jpg †[[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
 * Bakevelliidae - Gervillia inflata.JPG †[[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
 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[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
 * Leptosuchus crosbiensis cropped.jpg †[[Leptosuchus]]
 * †Leptosuchus crosbiensis
 * Lima
 * Limatula
 * †Linearis
 * †Lingula
 * †Lissodus – tentative report
 * Lithophaga
 * †Lonchidion
 * Lopha
 * †Lucina
 * Lunatia – tentative report
 * Rutiodon validus 21DB.jpg †[[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
 * Metoposaurus size comparison with human.png †[[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
 * Oligokyphus BW.jpg †[[Oligokyphus]]
 * †Opis
 * Ostrea
 * †Oxytoma
 * †Pachyrhizodus – or unidentified comparable form
 * †Parasuchus
 * †Paratypothorax
 * †Parrishia – type locality for genus
 * †Pecten
 * †Permocalculus
 * Pholadomya
 * Physa
 * †Pinna
 * †Placenticeras
 * †Placenticeras cumminsi
 * Placerias hesternus.jpg †[[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
 * Prosalirus BW.jpg †[[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
 * Revueltosaurus.jpg †[[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
 * Scutellosaurus.jpg †[[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
 * Sonorasaurus thompsoni.jpg †[[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
 * Tenontosaurus BW.jpg †[[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
 * Typothorax coccinarum cropped.jpg †[[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

Selected Cenozoic taxa of Arizona

 * †Adelphailurus
 * †Agriotherium
 * †Alforjas
 * †Ambystoma
 * †Ambystoma tigrinum
 * Machairodus giganteus 1.jpg †[[Amphimachairodus]]
 * †Amplibuteo
 * Antrozous
 * †Antrozous pallidus
 * Aquila
 * †Arctodus
 * †Aztlanolagus
 * Baiomys
 * Bassariscus
 * Bison
 * †Borophagus
 * †Borophagus diversidens
 * †Borophagus parvus – type locality for species
 * Brachylagus
 * Bufo
 * †Bufo woodhousei
 * Camelops hesternus Sergiodlarosa.jpg †[[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
 * Cuvieronius.jpg †[[Cuvieronius]]
 * Desmodus
 * †Desmodus stocki
 * †Diceratherium
 * †Dinohippus
 * Dipodomys
 * †Dipoides
 * †Epicyon
 * †Epicyon haydeni
 * Eptesicus – or unidentified comparable form
 * Equus
 * Equus scotti cropped.png †[[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
 * Glyptotherium cropped.jpg †[[Glyptotherium]]
 * †Glyptotherium texanum
 * †Hemiauchenia
 * †Hesperotestudo
 * Heterodon
 * †Heterodon nasicus – or unidentified comparable form
 * †Histiotus
 * †Homotherium – tentative report
 * Hyla
 * †Hypolagus
 * Ictalurus – tentative report
 * Indarctos atticus.jpg †[[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
 * Columbian mammoth.JPG †[[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
 * Nothrotheriops.jpg †[[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
 * Lion (Panthera leo) (30941994012) cropped.jpg †[[Panthera leo]]
 * †Paramachaerodus
 * †Paramylodon
 * †Paramylodon harlani
 * †Paronychomys
 * Perognathus
 * Peromyscus
 * Pituophis
 * †Pituophis melanoleucus
 * Platygonus compressus Harvard.jpg †[[Platygonus]]
 * †Platygonus compressus
 * †Pleiolama
 * †Plesiogulo
 * †Plionarctos
 * †Protolabis
 * †Pseudaelurus – report made of unidentified related form or using admittedly obsolete nomenclature
 * Ptinus
 * †Rana
 * Reithrodontomys
 * †Repomys
 * Rhynchotherium falconeri.png †[[Rhynchotherium]]
 * Scaphiopus
 * Sciurus
 * †Sciurus aberti – or unidentified comparable form
 * Sigmodon
 * Sorex
 * Spermophilus
 * †Spermophilus variegatus
 * Spilogale
 * †Spilogale putorius
 * Stegomastodon mirificus - Smithsonian.JPG †[[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
 * Tetrameryx shuleri.png †[[Tetrameryx]] – or unidentified comparable form
 * Thamnophis
 * Thomomys
 * †Titanotylopus
 * †Trigonictis macrodon
 * Urocyon
 * Vulpes
 * †Vulpes velox