CASE 



A. Outer surface of ilium of a phytosaur, No. 7322, U. of Mich. X0.54. 



B. Inner surface of ilium of a phylosaur. No. 7244, U. of Mich. X0.45. 



( '. A plate of donal armor of a phytoaaur of the Mystriosucbid group, No. 7247, U. of Mich. X0.8. 

 I). The cranial region of skull of a small dinosaur, Cedophysia sp., No. 7478, V. of Mich. X0.9. 



E. Lower view of I). I'. Lateral view of I). 



("/., ravity for iiifurxlil niliiin ; ni., otic region; bpt., baaipterygoid process of baaisphenoid; etmd., occipital oondyle. 



