BUITALO SOCIETY OF NATURAL SCIENCES 



49 



E 1940 A left antero-superognathal (PI. lo, figs, i, la), somewhat 

 smaller than the preceding, and defective on the median 

 part of outer face; it also lacks the tip of the tooth and 

 the distal half of the lateral wing. The articulating 

 process is correspondingly smaller than in the preceding 

 specimen. Height, 86 mm. 



E 1955 A juvenile left antero-superognathal, smaller than the pre- 

 ceding (PI. II, figs. 2, 2a). It lacks the lateral wing. The 

 tooth portion is long in comparison with the process, a 



Fig. 15. Diagram Showing how ANTERO-StrpEROGNATHALS Described in this 

 Catalog were Measured 



A — B, total height; C — D, tooth portion of element; E — F, width of tooth; 

 G — H, width of process. The total width (not indicated by letters), is the extreme 

 width measured along the line, AC. 



fact also observed in the juvenile antero-superognathals 

 of other species. From the character of the process and 

 the general appearance of the element, it unquestionably 

 belongs to the same species as the preceding three. 

 Height, 31 mm.; greatest width, 17; width of process, 9, 



E 1956 A juvenile left antero-superognathal, about one-third the 

 size of the preceding, lacking the tooth and the greater 

 portion of the lateral wing. It agrees closely in general 

 form with the preceding two elements. The process is 

 broad and quite flat. Total height (estimated), 37 mm. ; 

 width of process, 14. (PI. 27, fig. 2.) 



