Red Beds of Texas and Oklahoma
Geologic strata in the southwestern United States / From Wikipedia, the free encyclopedia
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The Red Beds of Texas and Oklahoma are a group of Early Permian-age geologic strata in the southwestern United States cropping out in north-central Texas and south-central Oklahoma. They comprise several stratigraphic groups, including the Clear Fork Group, the Wichita Group, and the Pease River Group.[1] The Red Beds were first explored by American paleontologist Edward Drinker Cope starting in 1877.[2] Fossil remains of many Permian tetrapods (four-limbed vertebrates) have been found in the Red Beds, including those of Dimetrodon, Edaphosaurus, Seymouria, Platyhystrix, and Eryops. A recurring feature in many of these animals is the sail structure on their backs.[3]