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The Mazon Creek fossil beds are a conservation lagerstätte found near Morris, in Grundy County, Illinois. The fossils are preserved in ironstone concretions, formed approximately 309 million years ago in the mid- Pennsylvanian epoch of the Carboniferous period. These concretions frequently preserve both hard and soft tissues of animal and ...
The Mazon River or Mazon Creek ( / məˈzɒn / ), is a tributary of the Illinois River in the United States. The confluence is near Morris, Illinois. [ 2] The Mazon River is associated with the Mazon Creek fossils of the Francis Creek Shale, which are also exposed in strip mines and quarries near the River. This fossil bed includes well ...
Schram, 1969. Other species. †T. gigantion. Schram, 2007. Tyrannophontes is an extinct genus of mantis shrimp that lived during the late Carboniferous period in what is now the Mazon Creek fossil beds of Illinois. It is the only genus in the family Tyrannophontidae. The type species, T. theridion, was described in 1969 by Frederick Schram.
T. gregarium fossil (part and counterpart). Amateur collector Francis Tully [] found the first of these fossils in 1955 in a fossil bed known as the Mazon Creek formation. He took the strange creature to the Field Museum of Natural History, but paleontologists were stumped as to which phylum Tullimonstrum belonged in. [7] The species Tullimonstrum gregarium ("Tully's common monster"), as these ...
42°02′33″N 88°15′44″W / . 42.0425°N 88.2622°W. / 42.0425; -88.2622. Type. Natural history, anthropology. Website. www .elginpublicmuseum .org. The Elgin Public Museum of Natural History and Anthropology is a natural history museum located in Elgin, Illinois. The museum, now over a hundred years old, is located within the 108 ...
Glacial Park, in McHenry County, preserves a wealth of glacial landscape features, including a delta kame named Camelback Kame, as well as wetlands in three glacial kettles—one marsh, one bog, and one fen. The very northwesternmost corner of the state lies in the Driftless Area, so named because it was never covered by glaciers. This area is ...
A two-story tall prehistoric coal forest is created, which displays local landscape, insects and amphibians as they existed 300 million years ago. Featuring life-size replicas of giant insects and tetrapods, the diorama acts as an analogue to the Mazon Creek fossil beds, a Carboniferous-age geological Lagerstätten in central Illinois, responsible for the preservation of most of the area's coal.
Essexella is an extinct genus of cnidarian known from Late Carboniferous fossils; it contains a single species, E. asherae. It is one of the most recurrent organisms in the Mazon Creek fossil beds of Illinois; [ 1] in the Essex biota of Mazon Creek, it consists of 42% of all fossil finds. [ 2] Essexella was originally described as a jellyfish ...