176 



THE PERMO-CARBONIFEROUS RED BEDS OF 



The last type of scapula (No. 3438) is represented by Several imperfect 

 specimens. It is more like that of Dimetrodon, especially in the region of 

 the epicondylar fossa, and differs from that form mainly in the short, rounded 

 coracoid elements. It is probable that this scapula belongs to Theropleura 

 or some closely related form. 



Fig. 50. — a, posterior view of left humerus of Edaphosaurus cruciger, showing ectepi- 



condylar foramen. X Vi. No. 3333. 

 6, anterior view of same humerus as shown in A. 

 c, anterior view of lower end of right humerus of Edaphosaurus cruciger, showing 



uncrushed condyle for radius and opening of ectepicondylar foramen. X K. 



In publication No. i8i of the Carnegie Institution the author noted the 

 presence of an ectepicondylar foramen in the humerus of Edaphosaurus, p. 

 81. The specimens had not been cleaned at that time and could not be 

 figured. In figure 50 is shown the form of this bone with the position of the 

 foramina. 



