List of the prehistoric life of Arizona facts for kids

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