PLATE XX 



Described 

 on Page 



Docodon suferus Simpson. 95 



Fig. I. Detail of same specimen as PI. XIX, figs. 2-3, showing right 

 M^■^ crown view, X about 10 diam. Type. Y.P.M. No. 10647. 



Fig. 2. Left M*"', external view. X about 12 diam. Y.P.M. No. 13770. 



Fig. 3. Left upper jaw with C, P^"', and M^"*, crushed and lying in 

 matrix, somewhat oblique internal view. X about 6 diam. Y.P.M. 

 No. 13769. 



210 



