Pelycosaur

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1Everett C. Olson / Geology / Vertebrate Paleontology / Permian / Tetrapod / Therapsida / Pelycosaur / Edaphosaurus / Paleontology / Biology / Alfred Romer

national academy of sciences Everett C. Olson

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Source URL: www.nap.edu

Language: English - Date: 2010-06-14 05:43:01
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