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Selected Paleozoic taxa of Illinois. Illustration of a fossil of the Carboniferous-Permian spider Arthrolycosa. Charles Emerson Beecher (1889). Fossil of the Middle-Late Ordovician giant trilobite Isotelus. Life restoration of the Carboniferous-Permian amphibian Phlegethontia.
1910–2020 [1] The history of Illinois may be defined by several broad historical periods, namely, the pre-Columbian period, the era of European exploration and colonization, its development as part of the American frontier, its early statehood period, growth in the 19th and 20th centuries, and contemporary Illinois of today.
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.
The Grand Village of the Illinois, also called Old Kaskaskia Village, is a site significant for being the best documented historic Native American village in the Illinois River valley. It was a large agricultural and trading village of Native Americans of the Illinois confederacy, located on the north bank of the Illinois River near the present ...
The McCune Mound and Village Site is a prehistoric archaeological site located in Whiteside County, Illinois near the city of Sterling. The site consists of a single mound, 3 metres (9.8 ft) high and 23 metres (75 ft) in diameter, and five depressions that may have been housing sites. The site was occupied by Upper Mississippian peoples from ...
North American. Definition. Chronological unit. Age. Stratigraphic unit. Stage. The Pre-Illinoian Stage is used by Quaternary geologists for the early and middle Pleistocene glacial and interglacial periods of geologic time in North America from ~2.5–0.2 Ma (million years ago). [ 1]
Lake Chicago. Map of middle stage of glacial Lake Chicago, USGS Report of 1915. Lake Chicago was a prehistoric proglacial lake that is the ancestor of what is now known as Lake Michigan, one of North America 's five Great Lakes. Formed about 13,000 years ago and fed by retreating glaciers, it drained southwest through the Chicago Outlet River.
List of the Paleozoic life of Illinois. This list of the Paleozoic life of Illinois contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Illinois and are between 538.8 and 252.17 million years of age.