The Paleontology of North America

The Tertiary in Iowa, US

map
 

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

Tertiary Fossils

No slide show is available for the Tertiary in Iowa.

Paleontology and geology

There is a huge break in Iowa’s geologic history between the Cretaceous and Quaternary periods, as Iowa does not have a rock record of Tertiary time. However, a few Tertiary-age vertebrate remains have been found in modern stream sediments in southwestern Iowa.
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