Red Beds of Texas and Oklahoma

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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.[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 back.[3]

Edaphosaurus pogonias and Platyhystrix.

See also[edit]

Geology of Wichita Falls, Texas


  1. ^ Lucas, S.G.; Spielmann, J.A.; Rinehart, L.F.; Martens, T. (2009). Dimetrodon (Amniota: Synapsida: Sphenacodontidae) from the Lower Permian Abo Formation, Socorro County, New Mexico (PDF). New Mexico Geological Society Guidebook. 60. New Mexico Geological Society. pp. 281–284. 
  2. ^ Bakker, R.T. (26 October 2007). "Texas Red-Beds: World's Largest Dimetrodon Cemetary". Prehistoric CSI. Houston Museum of Natural Science. Retrieved 1 November 2012. 
  3. ^ Dougal, Dixon (2014). The Complete Illustrated Encyclopedia of Dinosaurs & Prehistoric Creatures. Hermes House. p. 76. ISBN 9781846812095.