List of the prehistoric life of Wisconsin

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

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

The Paleobiology Database records no known occurrences of Mesozoic fossils in Wisconsin.

Restoration of the Cambrian arthropod Aglaspis
Fossil of the Silurian trilobite Calymene celebra
Life restoration of two species of the Silurian trilobite Deiphon
Fossil of the Late Ordovician-Permian tabulate coral Favosites
Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella
Fossil of the Silurian-Carboniferous crinoid ("sea lily") Periechocrinus
Fossil of the Cambrian-Ordovician trilobite Saukiella
Life restoration of the Silurian arthropod Thylacares
Illustration of a living Agathidium round fungus beetle
A living Chironomus midge
Restoration of a herd of Mammuthus primigenius , or wooly mammoths
A living Sitona weevil