Project 727: C. A. Sidor, B. S. Rubidge. 2006. Herpetoskylax hopsoni, a New Biarmosuchian (Therapsida: Biarmosuchia) from the Beaufort Group of South Africa. Amniote Paleobiology: Perspectives on the Evolution of Mammals, Birds, and Reptiles. (ISBN: 9780226094779):76-113.
This project has 1 specimen.
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