Dimetrodon, Cope, 1878

Romer, A. S., 1923, The pelvic musculature of saurischian dinosaur, Bulletin of the American Museum of Natural History 48, pp. 605-617 : 605-611

Figures

Fig. 2. The musculature of the pelvis in primitive reptiles, the primitiv6 "Archosauria," Alligator and saurischian dinosaurs, to show especially the steps in the differentiation of the pubo-ischium. Abbreviations: ad., adductor; amb., ambiens; c.fb., coccygeo-femoralis brevis; cfl., coccygeofemoralial ongus; f.obt., obturator foramen; ft., femoro-tibialis- f.t e flexor tibialis externus; f.t.i. flexor tibialis internus; il. fem., ilio-femoralis; il. fib., ilio-fibularis; il.tib., ilio-tibialis; is.tr., ischiotrochantericus; p.i.fe., pubo-ischio-femoralis externus; p.i.f.i., pubo-ischio-femoralis internus; p.t. pubo-tibiali8.