A second varanopseid skull from the Upper Permian of South Africa: implications for Late Permian 'pelycosaur' evolution
Author:
- Christian A. Sidor Sean ModestoCMChristian A. Sidor Sean Modesto
- 1 December 2001
- journal article
- Published by Scandinavian University Press in Lethaia
- Vol. 34 (4) , 249-259