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The paleozoic fossil record of Iowa spans from the Cambrian to Mississippian. [1] During the early Paleozoic Iowa was covered by a shallow sea that would later be home to creatures like brachiopods, bryozoans, cephalopods, corals, fishes, and trilobites. Later in the Paleozoic, this sea left the state, but a new one covered Iowa during the ...
This article contains a list of fossil-bearing stratigraphic units in the state of Iowa, U.S. Sites. Group or Formation ... Galena Group/Wise Lake Formation: Ordovician:
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
A 13,600-year-old mastodon skull was uncovered in an Iowa creek, state officials announced this week. Iowa's Office of the State Archaeologist said in a social media post that archaeologists 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.
Older fossils lay even deeper beneath the bone bed. These 8.9-million-year-old rocks included fossilized bones of fish and marine mammals. Experts also found teeth from juvenile megalodons and ...