List of the prehistoric life of Oregon

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

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

Fossil of the Carboniferous-Permian trilobit Cummingella
Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer
Fossil of the Carboniferous colonial rugose coral Siphonodendron
Fossilized shells of the Early-Late Cretaceous marine bivalve Actinoceramus
Life restoration of the Late Triassic-Middle Jurassic nautiloid cephalopod Cenoceras
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
Fossilized shell of the Jurassic-Cretaceous marine bivalve Myophorella
Life restoration of three species of the Middle-Late Triassic ichthyosaur genus Shastasaurus
Mounted fossilized skeleton of the Miocene horse Acritohippus
Life restoration of the Oligocene baleen whale Aetiocetus
Life restoration of the Miocene elephant relative Amebelodon . Margret Flinsch (1932).
A living Spatula clypeata , or northern shoveler
Illustration of a living Balaenoptera acutorostrata , or common minke whale
Restoration of two of the Miocene-Pliocene bone-crushing dog genus Borophagus preying on a camel . Jay Matternes (1964).
Life restoration of the Pliocene-Holocene camel Camelops
A living Castor canadensis , or North American beaver
Life restoration of the Pleistocene-Holocene Chendytes , or Law's diving-goose
Shells in differing orientations of Colus whelk sea snails
Fossilized fruit of a Craigia plant
Underside of a fossilized cranium of the Oligocene-Miocene bone-crushing dog Cynarctoides
Mounted fossilized skeleton of the Eocene pseudo-toothed bird Dasornis
Life restoration of the Eocene-Miocene false saber-toothed cat Dinictis . Robert Bruce Horsfall (1913).
Life restoration of the Oligocene-Miocene Enaliarctos and the toothed whale Macrodelphinus (background)
Fossilized skeleton of the Miocene-Pliocene coyote -like canine Eucyon
Fossilized flower of the Eocene-Oligocene mallow relative Florissantia
Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium
Life restoration of the Eocene-Miocene mammal Herpetotherium
Fossilized skull of the Miocene bear Indarctos
Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon
Fossilized cranium of the Miocene-Pleistocene saber-toothed cat Machairodus
Painting of a family of mammoths walking
Life restoration of a herd of Mammuthus columbi , or Columbian mammoths. The extent of the fur depicted is hypothetical. Charles R. Knight (1909).
Restoration of the Miocene three-toed horse Merychippus
Mounted fossilized skeleton of the Miocene Neophrontops
A living Ochotona , or pika
Life restoration of the Oligocene-Miocene beaver Palaeocastor
Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon
Life restoration of the Oligocene-Pleistocene false-toothed bird Pelagornis
Two Phoenicopterus , or flamingos
Fossilized skull of the Miocene horse Pliohippus
Life restoration of the Eocene brontothere mammal Protitanops
Fruit of a living Pyrus , or pear tree
A living member of Rubus , the genus including blackberries (pictured) and raspberries
Reconstruction of a fossilized skull and restorative portrait of the Miocene-Pliocene red panda relative Simocyon
Fossilized skeleton of the Miocene weasel Sthenictis
Restoration of the Miocene-Pliocene rhinoceros Teleoceras
Fossilized skull of the Miocene oreodont mammal Ticholeptus
Shell of a Trophon murex snail
A living Zalophus californianus , or California sea lion