316 University of California Publications in Geology [Vol. 7 



Measurements of Dentition 



No. 20028 No. 20040 



Length, anterior sde of F to posteror side of M 3 , 



measured along outer border of dental series 301. mm. 327. 



Length, anterior side of P 4 to posterior side of M 3 .... 141.9 

 Length, anterior side of inferior canine to posterior 



side of M„ 250. 290. 



Greatest width of palate between outer borders of 

 superior cheek-tooth series (measured between 



outer borders of third molars) 141.9 148. 



Least transverse diameter of palate between superior 

 cheek-tooth series (measured between inner 



borders of fourth premolars) (56. 56. 



Length, anterior side of P 4 to posterior side of M 3 .... 142.7 156.4 



Length, anterior side of M 1 to posterior side of M 3 .... 124. 132. 



F, anteroposterior diameter 17.8 



I 3 , greatest transverse diameter 9.7 



Superior canine, anteroposterior diameter 13.9 13.2 



P', anteroposterior diameter 18.8 



P 3 , greatest transverse diameter 11. 



P 4 , anteroposterior diameter - 23.5 *28. 



P 4 , greatest transverse diameter 25. 22.5 



M 1 , anteroposterior diameter 24.4 42. 



M', greatest transverse diameter 31. 33.6 



M 2 , anteroposterior diameter 42.1 • 52. 



M 2 , greatest transverse diameter across protocone— . 31.6 32.8 



M 3 , greatest anteroposterior diameter 49.5 45.8 



M 3 , greatest transverse diameter 31.4 27.2 



Type of Cope's 



C. hes- Texas No. 20028 No. 20040 

 tennis specimen§ 



Length, anterior side of P., to pos- 

 terior side of M, J 164. 142. mm. fl62.2 



I,, greatest transverse diameter «13. 17.9 19. 



1 2 , greatest transverse diameter 19. 20.4 18.8 



1 3 , anteroposterior diameter of alveolus 1 2. 28.5 25.3 

 Inferior canine, greatest anteropos- 

 terior diameter al2. 16.1 



P 4 , greatest anteroposterior diameter 27. 27. 21.9 27.5 



P 4 , greatest transverse diameter 12.9 13.4 



Mi, anteroposterior diameter 42. 38. 28. 39. 



Mj, greatest transverse diameter 21.1 21.5 



M 2 , anteroposterior diameter 52. 44. 38.4 46. 



M ; , greatest transverse diameter 22. 21.2 



M 3 , greatest anteroposterior diameter 58. 56. 58.2 58. 

 M 3 , greatest transverse diameter across 



anterior lobe 21. C 18.5 



a, approximate. 



* at base of crown. 



f M.j not completely emerged. 



i From Cope's figure of the specimen. 



§ Cope. E. D., Geol. Surv. Tex., 3rd Ann. Rep. for 1891, pi. 21, figs. 3 and 4. 



