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The Mazon Creek fossils are found in the Upper Carboniferous Francis Creek Shale. [6] The type locality is the Mazon River (or Mazon Creek), a tributary of the Illinois River near Morris, Grundy County, Illinois. The 25 to 30 meters of shale were formed approximately , during the Pennsylvanian period.
State parks are owned by the state and generally administered by the Illinois Department of Natural Resources. [3] Specifically, “State Park” refers to sites “exhibiting exceptional scenic and natural features and terrain” and that “offer a wide range of recreational opportunities for the public to enjoy”.
Early in the ensuing 20th century a Silurian age fossil reef system was discovered in the state. In the 1950s Francis Tully discovered the "monster" that would later be named in his honor. The Pennsylvanian species Tullimonstrum gregarium ("Tully Monster") is the Illinois state fossil. It is one of the few officially designated state fossils ...
Lake Callabonna Fossil Reserve; Lake Ngapakaldi to Lake Palankarinna Fossil Area; Maslin Bay - Aldinga Bay Geological Site [1] Naracoorte Caves National Park; Nilpena Ediacara National Park; Willalinchina Sandstone Fossil Flora site, near Woomera [2]
Operated by the Forest Preserve District of Will County, 320 acre site and 200 acre lake where great blue herons, great egrets, black-crowned night herons, double-crested cormorants, and cattle egrets nest together, features Lake Renwick Heron Rookery Visitor Center with birding programs Lakeview Nature Center: Macomb: McDonough: Central
Expert fossil preparator Bob Masek first discovered the specimen in the 1980s in the fossil deposits preserved at Illinois’ Mazon Creek Lagerstätte. (The German word is a term paleontologists ...
Part of Horseshoe Lake State Fish and Wildlife Area. Illinois Beach Nature Preserve: 1980: Lake: State The site is a part of Illinois Beach State Park, and contains a wide range of savanna, prairie, wetland and beach ecosystems, as well as numerous endangered species.
The objectives of the IOS are to promote scientific research and education in order to improve knowledge and awareness of birds in Illinois, publish a journal and keep a permanent historical record of its bird life, maintain an up-to-date state checklist, and support the well-being of birds and birding in the state. [2]