540 THE WASATCH FAUNA. 



The dorsal centra are short and contracted at the middle, and without keel 

 or hypapophysis. The capitular fossae are strong on both faces of the 

 bases of the diapophysis. The centrum of the lumbar is relatively a Httle 

 longer, and has a median thickened ridge below. 



Measurements of veriebrce. 



■' M. 



Length of axis with dentatus 105 



T,. , „ , ■ S anteroposterior 65 



Diameters of centrum axis < '■ ,„. 



{ transverse lua 



^. ^ ^ X • ^ r, •••(vertical 047 



Diameters of anterior race C. iii ■! 



( trans ve rse uvo 



( vertical 035 



Diameters of centrum dorsaU transverse 066 



' anteroposterior 053 



Length of centrum lumbar 037 



The glenoid cavity of the scapula is rather narrow, and its anterior 

 region is narrowed even more than in the C. latipes, and is produced into 

 an acute tuberosity. This is close to but distinct from the coroacoid, which 

 is broken off from the specimen. The spine rises abruptly from a thick 

 .base from near the edge of the glenoid. The proximal extremity of the 

 humerus is a little crushed, but shows that the proximal extremity of the 

 great trochanter is half as wide as the articular face measured on a trans- 

 verse line. Its proportions are thus intermediate between those in the G. 

 latipes and the Bathmodon radians (see page 276). The shape of the prox- 

 imal extremity is subtriangular. The inferior portion of the deltoid crest is 

 prominent, and twists inwards, continuing by an angular ridge to the internal 

 edge of the condyle. The internal epicondyle is prominent, both outwards 

 and backwards. The internal condyle is also prominent and twists back- 

 wards in a crest which disappears on the inferior half of the posterior face 

 of the shaft. The condyle is rather short; the inner flange is prominent, 

 and the inner cylinder has its external part beveled quite steeply. The ole- 

 cranar fossa is mostly external to the middle line. 



Measurements of scapula and humerus. 



M. 



_. , i I -J -i ( anteroposterior 105 



Diameters at glenoid cavity < ' 



( transverse 063 



Width of neck of scapula 095 



Uran8verse^^'*l^*'^^<^'^°«^*y l*^ 



Diameters of head of humerus.^ ( articular surface 093 



( anteroposterior 



Diameter shaft at middle 075 



