Search results
Results from the WOW.Com Content Network
Location; Region Illinois: ... The Galena Dolomite is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.
Fossils are common from the Ordovician through the Pennsylvanian. Illinois has a reputation for rocks bearing large numbers of trilobite fossils, often of very high preservational quality. [1] There is a gap in Illinois' geologic record from the Mesozoic to the Pleistocene. During the Ice Age, Illinois was subject to glacial activity.
This article contains a list of fossil-bearing stratigraphic units in the state of Illinois, U.S. Sites. Group or Formation ... Galena Dolomite: Ordovician: Dubuque ...
Richardson's Guide to the Fossil Fauna of Mazon Creek. Northeastern Illinois University. ISBN 978-0-925065-21-6. Jack Wittry (2006). The Mazon Creek Fossil Flora. Esconi. ISBN 978-1-932433-71-5. Jack Wittry (2012). The Mazon Creek Fossil Fauna. Esconi. ISBN 978-0578111483. Jack Wittry (2020). A Comprehensive Guide to the Fossil Flora of Mazon ...
Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior †Lysorophus – type locality for genus †Marsupiocrinus †Meristina †Metacoceras †Milosaurus – type locality for genus †Monograptus †Monograptus dubius †Murchisonia †Naticopsis †Naticopsis carleyana †Naticopsis planifrons
A ‘striking’ creature with large spiky legs roamed what’s now Illinois 300 million years ago ... Expert fossil preparator Bob Masek first discovered the specimen in the 1980s in the fossil ...
Florissant Fossil Beds: Florissant Formation: Eocene (Priabonian) North America: US: Colorado: Insects: Fossil Prairie Park: Devonian: North America: US: Iowa: Mazon Creek: Francis Creek Shale: Carboniferous (Pennsylvanian) North America: US: Illinois [Note 1] Ghost Ranch: Triassic: North America: US: New Mexico: Non-Avian Dinosaurs [Note 1 ...
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]