250 



INDEX 



Rose, 4, 49, 51, 57, 63. 



Rotation of pa., me., 7, 8, 31, 52 ; of pa d ., 



me d ., 222. 

 Ryder, 43. 



Schlosser, 145. 



Sciurus, 146. 



Scott, 234. 



Sectorial (defined), 89. 



Selenoid, 112, 163. 



Selenodont, 163. 



Sexituberculy, 68, 80, 89, 163. 



Shrew, 210. 



Simplicidentata, 145. 



Sinopa, 134. 



Sirenia, 15, 188. 



South American Ungulates, 189. 



Spalacotherium, 22, 24, 25, 26 ; rotation 



of pa' 1 , and me d . , 7. 

 Squirrels, 146, 205. 

 Stereognathus, 24, 103. 

 Styles, 82, 84. 

 Stylodon, 24, 29. 



Taeker on Odontogenesis, 48, 51. 



Taeniodonta, 151. 



Talon, 67, 68*, 81. 



Talonid, 53, 89. 



Talpa, 209. 



Tapirs, 86, 176, 180. 



Tertiary formations, diagram, 17. 



Therapsida, 100. 



Theriodontia, 91. 



Thylacynus, 109. 



Tillodontia, 13, 151. 



Tims, Marett, 149, 213. 



Titanotheres, 175. 



Toxodontia, 16, 189. 



Triassic mammals, 18, 94, 101, 105*. 



Triconodon, 25, 218, 222. 



Triconodont, 89, 227. 



Triconodonta, 11,21. 



Triconodont molars, 21, 33, 40, 60, 79, 

 88, 89, 144. 



Tricon odonty, secondary, 64. 



Trigon, 67, 80. 



Trigonid, 89. 



Trigonolestes, 171. 



Tritubercular nomenclature, 41. 54, 55, 

 66-73 ; teeth, stages in evolution of, 

 39 ; type (as ancestral), 2-4, 40, 89. 



Trituberculata, 12, 22. 



Trituberculates, 95, 115. 



Trituberculy, objections to, 201. 



Tritylodon, 93, 103. 



Tubercular, 89. 



Tuberculo-sectorial type, 89. 



Tuberculus anomalus, 158. 



Tubulidentata, 13. 



Tupaia, 109. 



Typotheria, 16, 189. 



Uintatherinm, 166. 



Unguiculata, 100. 



Ungulata, 101, 163; nomenclature of 



molar cusps, 67, 76, 83 ; South 



American, 189. 



Variation, determinate, 233. 

 Vulpavus, 89. 



Wart-hog, 188. 

 Whales, 16, 190. 

 Wilson, E. B., 237. 

 Woodward, A. S., 2oii. 

 Woodward, M. F., 6, 77, 123. 

 Wortman, 150, 224. 

 Wynyardia, 112. 



Zalambdodont Insectivores, 117-126, 210- 



213, 226, 227. 

 Zeuglodon, 16, 191. 





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