EXPLANATION OF PLATE 10. 

 Shastasaurus osmonti n. sp. 



All figures are from the type specimen. 



Fig. 1. — Lower side of anterior arch and limbs. S, right scapula; C, right 

 eoracoid; H, right humerus. A little less than one-eighth 

 natural size. 



Fig. 2. — Upper side of right eoracoid. A little more than one-fourth natural 

 size. 



Fig. 3. — Cross-section of proximal end of right eoracoid, one-third natural 

 size. 



Fig. 4. — Upper side of right scapula, about three-tenths natural size. 

 Fig. 5. — Proximal end of right scapula, one-half natural size. 



