Search results
Results From The WOW.Com Content Network
Map all coordinates using OpenStreetMap. 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.
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 ...
Mazon (məˈzɒn /) [4] is a village in Mazon Township, Grundy County, Illinois, United States. The name derives from the Potawatomi word for "nettles" [5] (mzan). [6] The population was 979 at the 2020 census. [7] Illinois' State Fossil, the unique and bizarre Tully Monster was first found in nearby Mazon Creek. [8]
Mazon Creek vertebrates included the small amphibian Amphibamus grandiceps, which may be a relative of the amphibian lineage that led up to frogs. [10] Amphibians as large as ten feet in length lived in these swamps. [11] Some early vertebrates preserved in the Mazon Creek's concretionary nodules have fossilized soft tissue. [10]
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]
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 ...
Website. www.grundyco.org. Grundy County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 52,533. [1] Its county seat is Morris. [2] Grundy County is part of the Chicago - Naperville - Elgin, IL- IN - WI Metropolitan Statistical Area. In 2010, the center of population of Illinois was in Grundy ...
Illinois Department of Natural Resources. Goose Lake Prairie State Natural Area is a 2,537-acre (1,027 ha) state park in Illinois. More than half of the state park is a tallgrass prairie maintained as an Illinois Nature Preserve. It is located in Grundy County near the town of Morris approximately 50 miles (80 km) southwest of Chicago.