List of the Paleozoic life of Wyoming

This list of the Paleozoic life of Wyoming contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Wyoming and are between 538.8 and 252.17 million years of age.

Life restoration of the Middle-Late Ordovician jawless fish Astraspis
Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon
Restorative portrait of the Permian synapsid (mammal prescursor) Burnetia
Life restoration of the Carboniferous Chimaera relative
Fossil of the Ordovician-Silurian tabulate coral Catenipora
Life restoration of the Early Devonian jawless fish Cephalaspis
Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina
Fossilized shell of the Late Devonian-Permian brachiopod Composita
Fossil of the Carboniferous shark Ctenacanthus
Shell of a Dentalium tusk shell
Fossilized foliage from the Early-Late Devonian club moss relative Drepanophycus
Fossilized shells and restored appearances of the Middle-Late Ordovician nautiloid cephalopod Endoceras
Fossilized shell of the Silurian-Permian sea snail Euomphalus
Fossil of the Late Ordovician-Permian tabulate coral Favosites
Fossil of the Early-Late Ordovician trilobite Geragnostus
Life restoration of the Carboniferous shark Glikmanius
Fossilized shell of the Late Devonian-Late Triassic ammonoid cephalopod Goniatites
Life restoration of the Permian Chimaera relative Helicoprion
Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha
Restoration of the Carboniferous-Permian ray-like cartilaginous fish Janassa (top and left)
Fossil of the Cambrian trilobite Kendallina
Fossils of the Middle Devonian clubmoss Leclercqia
Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella
Fossilized shell of the Carboniferous-Permian nautiloid cephalopod Metacoceras
Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis
Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer
Fossil of the Cambrian trilobite Olenoides
Fossilized shell of the Middle Ordovician-Silurian brachiopod Platystrophia
Fossilized shell of a Pseudomelania sea snail
Restoration of the Early Devonian primitive vascular plant Renalia
Fossil of the Cambrian-Ordovician trilobite Saukiella
Modern specimen of the marine bivalve Solemya
Fossilized shell and lophophore of the Silurian-Middle Jurassic brachiopod Spiriferina
Fossilized shell of the Ordovician-Silurian brachiopod Strophomena
Fossil of the Cambrian trilobite Tricrepicephalus
Fossilized jaws of the Late Devonian lungfish Uranolophus