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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 Pohlsepia mazonensis fossil was found specifically in the Pit 11 region, within the Francis Creek Shale Member [7]. Like most soft tissue fossils found in Mazon Creek, it is preserved as a 2D light-on-dark discolouration of the matrix [8]. The Francis Creek Shale Member of the Carbon Formation has a diverse array of preserved plants and ...
Paleogene. Canyon Group / Caddo Creek Formation. Carboniferous. Canyon Group / Graford Formation. Carboniferous. Canyon Group / Palo Pinto Formation. Carboniferous. Canyon Group / Winchell Formation. Carboniferous.
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 ...
Paleontology in Texas. Paleontology in Texas refers to paleontological research occurring within or conducted by people from the U.S. state of Texas. Author Marian Murray has said that "Texas is as big for fossils as it is for everything else." [1] Some of the most important fossil finds in United States history have come from Texas.
Douglassarachne is known from Mazon Creek which preserves fossils around 308 million years ago. The fossil was preserved in a siderite concretion. [1] [2] In 1980, Bob Masek discovered the fossil at the Pit 15 Northern Mine spoil heap, near Essex, Kankakee County, Illinois. Around 1990 he would sell the fossil to David Douglass. [1]
This list of the prehistoric life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas. Precambrian [ edit ]
August 2, 2024 at 1:29 PM. K. Ross. A college student visiting the Grand Canyon died after an accidental fall near a scenic overlook, park officials said Thursday. Abel Joseph Mejia, 20, fell to ...