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During the late Mississippian Ohio was covered by a shallow sea. Near the end of the Mississippian the seas withdrew from the state. Ohio was located near the equator. The fossil record of Ohio includes greater numbers of land plants, brachiopods, clams, crinoids, fishes. [4] Ohio was a low-lying swampy plain near the coast during the ...
In 1900, the land and its ownership were granted to the Ohio State Archaeological and Historical Society (a predecessor of the present Ohio Historical Society). The Ohio Historical Society designated the Arc of Appalachia Preserves system, a project of Highlands Sanctuary , Inc., as the managing agency of Serpent Mound from 2010 until March 2021.
This list of the Paleozoic life of Ohio contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Ohio and are between 538.8 and 252.17 million years of age.
The fossil was first uncovered in 1984 by the late Nicholas Hotton III, a museum paleontologist who had excavated fossils from the Red Beds in Texas, an area known to be rich in Permian-age remains.
Scientists in Argentina have discovered excellently preserved fossil remains of the oldest-known tadpole, the larval stage of a large frog species that lived alongside dinosaurs about 161 million ...
The Paleo Crossing site, one of the oldest sites in Ohio, had two [5] or three [6] post holes and refuse pits that contained charcoal. From radiocarbon dating, the site was used 10,980 BP ± 75 yearsBefore Present [ 5 ] or about 9,000 B.C. [ 6 ] The post holes and an area about 150 square feet indicate that there was a structure at the site.
The discovery of a newly identified species — the oldest saber-toothed animal found and an ... years old, but the recent fossil find is thought to be an unprecedented 280 million to 270 million ...
Triadobatrachus is an extinct genus of salientian frog-like amphibians, including only one known species, Triadobatrachus massinoti. It is the oldest member of the frog lineage known, and an excellent example of a transitional fossil. It lived during the Early Triassic about 250 million years ago, in what is now Madagascar.