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.

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

Fossils of the Carboniferous-Permian bryozoan Archimedes
Fossilized stems from the Carboniferous-Permian horsetail relative Calamites
Fossilized shell of the Late Devonian-Permian brachiopod Composita
Fossilized shells of the Middle-Late Devonian brachiopod Cyrtospirifer
Life restoration of the Carboniferous shark Glikmanius
Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras
Restoration of the Cambrian trilobite Olenellus
Life restoration of the Carboniferous-Permian amphibian Phlegethontia .
Fossilized leaves and branches of the Devonian-Triassic horsetail relative Sphenophyllum
Life restoration of the Carboniferous-Triassic freshwater shark Triodus
Fossilized shell of the Early Cretaceous ammonoid cephalopod Acanthohoplites
Petrified trunk segments of the Permian-Late Triassic conifer tree Araucarioxylon arizonicum
Restoration of the Late Triassic theropod dinosaur Camposaurus
Life restoration of Coelophysis kayentakatae
Life restoration of the Early Jurassic theropod dinosaur Dilophosaurus resting
Life restoration of the Early Jurassic amphibian Eocaecilia
Fossilized shell of the Carboniferous-Eocene bivalve Gervillia
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
Fossilized skull of the Late Triassic phytosaur Leptosuchus
Life restoration of the Late Triassic phytosaur Machaeroprosopus
Life restoration of the Late Triassic amphibian Metoposaurus with an anachronistic human to scale
Restoration of the Late Triassic–Early Jurassic synapsid (mammal precursor) Oligokyphus
Restoration of the Late Triassic synapsid (mammal precursor) Placerias with an anachronistic human to scale
Life restoration of the Early Jurassic frog Prosalirus
Life restoration of the Late Triassic crocodile relative Revueltosaurus
Life restoration of the Early Jurassic primitive armored dinosaur Scutellosaurus
Life restoration of the Early-Late Cretaceous brachiosaur Sonorasaurus
Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus
Restoration of a pair of the Late Triassic aetosaur Typothorax
Fossilized skull of the Miocene saber-toothed cat Amphimachairodus
Life restoration of the Pliocene-Holocene camel Camelops
Life restoration of the Pliocene-Holocene elephant relative Cuvieronius
Restoration of the Pliocene-Holocene horse Equus scotti , or Scott's horse
Mounted fossilized skeleton of the Pleistocene armadillo relative Glyptotherium
Fossilized skull of the Miocene bear Indarctos
Mounted fossilized skeleton of a Mammuthus columbi or Columbian mammoth
Life restoration of the Pleistocene ground sloth Nothrotheriops
A living Panthera leo , or lion
Mounted fossilized skeleton of the Miocene-Pleistocene peccary Platygonus
Restoration of the Miocene-Pliocene elephant relative Rhynchotherium
Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon
Restoration of the Pleictocene pronghorn Tetrameryx