Gaining Ground: The Origin and Evolution of Tetrapods
Jennifer A. Clack
Kirtlandia, Cleveland Museum ofNatural History 16: 1–8. Romer, A. S., and T. S. Parsons. 1986. The Vertebrate Body. Philadelphia: Saunders. Romer, A. S., and L. I. Price. 1940. Review ofthe Pelycosauria. Special Paper 28. 1–538. Boulder ...