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Fossils from the Middle and Upper Ordovician of Oklahoma. Oklahoma Geological Survey, Circular 43. 1957 Byrnes, J.G. Notes on the Nature and Environmental...12 KB (1,129 words) - 14:23, 10 February 2024
Strimple, H. L.,1962. Crinoids from the Oologah Formation. Oklahoma Geological Survey, Circular 60, pp 1-75 [69] Thomson, W., 1872. On the Crinoids of the...308 KB (14,598 words) - 09:42, 7 September 2024
