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Red Beds of Texas and Oklahoma : ウィキペディア英語版 | Red Beds of Texas and Oklahoma The Red Beds are a group of Early Permian-age geologic strata in the southwestern United States outcropping in north-central Texas and south-central Oklahoma. They comprise several stratigraphic groups including the Clear Fork Group, the Wichita Group, and the Pearce River Group. The Red Beds were first explored by American paleontologist Edward Drinker Cope starting in 1877. Fossil remains of many Permian tetrapods (four-limbed vertebrates) have been found in the Red Beds, including those of ''Dimetrodon'', ''Edaphosaurus'', ''Seymouria'', and ''Eryops''. ==See also== Geology of Wichita Falls, Texas
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