Number 62 Dkckmbkr 14, 1918 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Published by the University 



A MOUNTED SKELETON OF BDAFHOSAURUS 

 CRUCIGER COPE, LN THE GEOLOGICAL COL- 

 LECTION OF THE UNIVERSITY OF 

 MICHIGAN 



By E. C. Case 



In 191 3 an expedition from the University of Michigan ex- 

 cavated the Brier Creek Bone Bed in Archer County, Texas, 

 discovered the previous year. From this bone bed over fifteen 

 hundred specimens, mostly of isolated bones, were recovered. 

 From this large amount of material two skeletons have so far 

 been restored showing the complete skeletal anatomy of the 

 great lizard-like Permo-Carboniferous reptiles Dimetrodon 

 (completed in 191 5 and now in the Museum of Zoology of the 

 University) and Edaphosaurus, just completed. 



The genus Edaphosaurus has been one of the most puzzling 

 forms of reptilian life of the late Paleozoic and the completion 

 of a mount showing its characters is the final result of many 

 collecting trips and trial mounts. The striking peculiarity of 



