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At this time Iowa was home to mammoths and mastodons, whose remains were preserved in a wide variety of locations in the state. [2] During the glaciations of the Ice Age over the past 2.5 million years the glaciers transported and deposited fossils eroded from Cretaceous sediments.
This article contains a list of fossil-bearing stratigraphic units in the state of Iowa, U.S. Sites. Group or Formation Period ... Galena Group/Wise Lake Formation:
This list of the Paleozoic life of Iowa contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Iowa and are between 538.8 and 252.17 million years of age.
The Devonian Fossil Gorge, northeast of Iowa City on the banks of the Iowa River, provides a glimpse into the ancient world. Exposed by the floods of 1993 and 2008, the gorge reveals a landscape ...
Fossil of the Cambrian-Middle Devonian trilobite Cheirurus †Cheirurus †Chomatodus †Chomatodus inconstans †Chonetes †Chonetes glenparkensis †Chonetes illinoisensis †Chonetes logani †Chonetes multicosta †Chonetes ornatus †Cleiothyridina †Cleiothyridina incrassata – or unidentified comparable form †Cleiothyridina sublamellosa
In June, a fossil diver found a large section of tusk from a long-extinct mastodon off the Gulf Coast of Florida. Archaeologists at an Iowa creek bed where a 13,600 mastodon skull was found ...
The archaeology of Iowa is the study of the buried remains of human culture within the U.S. state of Iowa from the earliest prehistoric through the late historic periods. When the American Indians first arrived in what is now Iowa more than 13,000 years ago, they were hunters and gatherers living in a Pleistocene glacial landscape.
It is characterized by its gray color, rough texture, and numerous fossils. Its type locality is Platteville, Wisconsin. It was heavily used in the early decades of the building of Minneapolis–Saint Paul and Faribault, Minnesota. [1] In Illinois, the formation is elevated to group status and referred to as the Platteville Group. [2]