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Most Mesozoic sediments were deposited in West Tennessee, along the present course of the Tennessee River. The Coon Creek Formation is one of these, deposited as a sandy shoreline along the Mississippi embayment during the Cretaceous. Many large sea creatures, including mosasaurs and plesiosaurs as well as ammonites ruled the seas that covered ...
Western Tennessee was also submerged by tropical seawater at times during the ensuing Tertiary period of the Cenozoic era. This sea was home to molluscs. [1] A few foraminiferans from Eocene Tennessee were preserved in the state's fossil record. [7] On land, Rivers also flowed through the state. Tennessee was variously covered in forests and ...
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The Gray Fossil Site is a deposit of laminated clay and silt sediments laid down in an ancient lake that formed within a sinkhole. The deposit is oval in shape, covering an area of roughly 220 meters by 180 meters and ranging in depth from about 7 meters to 39 meters deep.
Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor.These particles either have their origins in soil and rocks and have been transported from the land to the sea, mainly by rivers but also by dust carried by wind and by the flow of glaciers into the sea, or they are biogenic deposits from marine organisms or from ...
Wells Creek is an impact crater located near Cumberland City, Tennessee. It is 12 kilometers (7.5 mi) in diameter and the age is estimated to be 200 ± 100 Ma (million years old), placing it in the Jurassic or a neighboring period. The crater is exposed to the surface. The center of the crater contains some of the finest shatter cones in the ...
The Chattanooga Shale is a member of the Devonian Shale-Middle and Upper Paleozoic Total Petroleum System (TPS) stretching from New York to Tennessee that comprises six large petroleum systems. Such systems span Cambrian to Pennsylvanian intervals, and the Chattanooga Shale feeds much of the Appalachian Basin's oil and gas.
This list of the prehistoric life of Tennessee contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of ...