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The Mississippian carbonates of Tennessee are very rich in fossils. [3] In the Mississippian Tennessee was home to large fish, abundant conodonts, and plants. [2] Swampy conditions prevailed in Tennessee during the later part of the Mississippian epoch. [8] During the Pennsylvanian epoch Tennessee was home to vast river systems flowing toward ...
Agaricocrinus americanus, also known as the mushroom crinoid or American crinoid, is a species of extinct crinoid. Its fossils can be found in the U.S. states of Indiana, Tennessee and Kentucky. They date back to the Lower Mississippian, about 345 million years ago. [1]
This list of the Paleozoic life of Tennessee contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Tennessee and are between 538.8 and 252.17 million years of age.
Fossilized calyx of the Carboniferous crinoid ("sea lily") Agaricocrinus americanus, or the mushroom crinoid †Agaricocrinus americanus †Amplexopora †Amplexus †Ampyx †Aphetoceras †Atrypa †Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature †Aulopora †Bellerophon †Bembexia ...
A stalked crinoid (white) and a comatulid (red) in deep sea, showing the differences between these two sister groups. Most modern crinoids, i.e., the feather stars, are free-moving and lack a stem as adults. Examples of fossil crinoids that have been interpreted as free-swimming include Marsupites, Saccocoma and Uintacrinus. [23]
In Tennessee, Prehistoric is generally defined as the time between the appearance of the first people in the region (c. 12,000 BC) and the arrival of the first European explorers (c. 1540 AD). The Historic period begins after the arrival of those Europeans and continues to the present.
The Gray Fossil Site is an Early Pliocene assemblage of fossils dating between 4.5 and 4.9 million years old, located near the community of Gray in Washington County, Tennessee. The site was discovered during road construction on Tennessee State Route 75 by the Tennessee Department of Transportation in May 2000, [ 1 ] [ 2 ] after which local ...
Pentacrinites is an extinct genus of crinoids that lived from the Hettangian to the Bathonian of Asia, Europe, North America, and New Zealand.Their stems are pentagonal to star-shaped in cross-section and are the most commonly preserved parts. [1]