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Paleontology in Illinois refers to paleontological research occurring within or conducted by people from the U.S. state of Illinois. Scientists have found that Illinois was covered by a sea during the Paleozoic Era. Over time this sea was inhabited by animals including brachiopods, clams, corals, crinoids, sea snails, sponges, and trilobites.
Geologic formations of the Neogene Period, in Cenozoic Era United States, North America. See also the preceding Category:Paleogene United States and the succeeding Category:Quaternary United States Subcategories
This list of the prehistoric life of Illinois contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of ...
The Neogene (/ ˈ n iː. ə dʒ iː n / NEE-ə-jeen, [6] [7]) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period 23.04 million years ago to the beginning of the present Quaternary Period 2.58 million years ago.
Paleogeographic reconstruction showing the Illinois Basin area during the Middle Devonian period. [9] Almost all Silurian rocks in Illinois are deep-water limestone and dolomite deposits; reef habitats were common, and fossils of reef organisms are locally highly abundant, including corals, brachiopods, crinoids, stromatoporoids, and bryozoans. [6]
The Neogene Period is a unit of geologic time starting 23.03 Ma. [10] and ends at 2.588 Ma. The Neogene Period follows the Paleogene Period.
The Illinois Newspaper Project, as part of the USNP, completed work in July 2010. To date, INP staff has inventoried and cataloged 21,000+ U.S. newspaper titles, added 26,000+ holdings records to the newspaper union list in OCLC , and microfilmed almost 2,250,000 pages, becoming an important resource for scholars, genealogists, and ancestry ...
Group or Formation Period Notes Alum Bluff Group/Oak Grove Formation: Neogene: Barnwell Group/Clinchfield Formation: Paleogene: Blue Bluff Formation: Paleogene: Blufftown Formation ...