INDEX 



175 



Protorosaurus, 92. 

 Pubis, 57, 5S.* 

 Radius. 55,* 56. 

 Rattlesnake beds, 17. 

 recurvicomis (Monoclonius), 83. 

 Red Deer River, Alberta, 4. 

 Romer, A. S., 65. 

 Rostral. 31, 35. 

 Russell, L. S.. 1. 

 Sacrum, 46, +7,* 4S, 49.* 

 St. Mary formation, 78. 

 San Juan County, New Mexico, 6. 

 Ceratopsian species in, 16-17. 

 Saskatchewan, localities, 13. 

 Scapula, 50,* 51. 

 Schuchert, C, 20. 

 Sense organs, 73. 



serratus (Triceratops), 38,* 120, 121. 

 Skeleton, appendicular, 50-63. 

 Skeleton, axial, 30-50. 



Skull, of Monoclonius (Centrosaurus) flexus, 30, 31,* 32- 

 35, 36,* 37-38. 



Chasmosaurus, 66, 67,* 68, 95,* V, VI, VII. 

 South America, 1 8. 



South Dakota, ceratopsian species in, 14, 117. 

 sphenocerus (Monoclonius), 83. 



Sphenodon, 71. 



Splenial, 37. 



Squamosal, 33, 34. 



Stanton, T. W., 2. 



Stegosauria, 24. 



Sternberg, C. M., 1, 64, 104. 



sternbergii (Pentaceratops), 28,* 108, 109,* 110, V. 



Sternum, 51, 52,* 5 3. 



Stratigraphic sequence, table of, 7. 



Stvracosaurus, 4, 25-27, 33, 68, 74, 82, 87, 89, 91. 

 albertensis, 28,* 83, 87, 88, 90, 91, 104, VIII. 

 ovatus, 5, 90, 104. 



sulcatus (Triceratops), 128, 129. 



Surangular, 37. 



Sweetwater County, Wyoming, 16. 



Tait, J. and Brown, B., 73. 



Tapirus, 79. 



Teeth, 35. 



Tetrapodosaurus borealis, 64. 



Texas, 1 7. 



Tibia, 60, 61.* 



ToroMurus, 3, 6, 26, 27, 29, 66, 68, 73, 74, 92, 107, 



ins, iii9, no, 1 14, 127, 130. 



gladius, 28,* 88, 107, 114, 128, 130, 131, 132, XVI. 

 l..tus, 22, 25, 28,* 111, 114, 127, 129, 130, 131,* 

 132, XV. 

 Trachodon, 5 8, 72. 



Triceratops, 1, 6, 26, 29, 30, 31, 32, 33, 34, 35, 36, 37, 



38, 39, 40, 47, 48, 49, 51, 52, 53, 54, 55, 57, 58, 62, 



64, 71, 72,* 73, 74, 77, 82, 89, 91, 96, 98, 99, 100, 



101, 103, 106, 114, 127, 128, 131, 132. 



alticornis, 3, 27, 115, 128. 



brevicornus, 27, 28,* 35, 102, 108, 109, 114, 115, 



117, 118, 119, 120, 121, 123-125, 129. 

 calicornis, 29, 114, 115, 116, 118, 120, 121, 122, 



123, 124, 125. 

 elatus, 107, 114, 115, 118, 119, 120, 122, 123, 124, 



125, 128, 129, XIV. 

 flabellatus, 71, 72, 98, 114, 115, 118, 120, 121, 122. 

 galeus, 115, 128. 



(Diceratops) hatchcri, 28,* 114, 115, 121, 126. 

 horridus, 3, 28,* 71, 114, 115, 116, 117, 118, 119, 



125, 126, 130, XIII. 

 "ingens," 29, 117, 130. 

 maximus, 115, 129, 130. 

 obtusus, 28,* 107, 115, 120, 122, 125, 126,* 127, 



128, 129. 

 prorsus, 25, 28,* 37, 40, 60, 71, 76, 107, 109, 110, 



115, 116, 117, 118, 119, 120, 121, 123, 124. 

 serratus, 35, 38,* 71, 78, 98, 109, 114, 115, 116, 



117, 120, 121, 122. 

 sulcatus, 71, 114, 115, 128, 129. 

 Two Medicine formation, 5, 6. 



Ceratopsian species in, 8, 84, 90, 97, 109, 110. 

 Tyrannosaurus, 23, 71. 

 Ulna, 54,* 55. 



Vertebrae, cervicals, 39,* 40, 41,* 42.* 

 Vertebrae, dorsals, 42,* 43,* 44,* 45,* 46.* 

 Vertebral column, of Monoclonius (Centrosaurus) flexus, 

 39-50. 



of Chasmosaurus, 68, 69. 

 Vertebral formula, 39. 

 Vomer, 3 5. 



Williston, S. W., 74, 113. 

 Wiman, C, 111, 112, 113. 



Wyoming, ceratopsian species in, 15, 117, 119, 120, 121, 

 122, 123, 125, 126, 128, 130, 132. 



