The Paleontology of the midwest

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The Triassic in Iowa, US

map
 

See exposures in this state from the:
Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian

Triassic Fossils
Fossil photos from Triassic in Iowa

Paleontology and geology

The seas had retreated from the state by the Triassic. The surface of the future state of Iowa was exposed and undergoing extensive erosion, thus there are no Triassic rocks or fossils found anywhere in the state.

Minnesota State Map
Wisconsin State Map
Illinois State Map
Missouri State Map
Nebraska State Map
South Dakota State Map