INDEX 



Pages on which species or genera arc discussed are in bold-face type. Synonyms are in italics, 

 signify illustrations. 



Asterisks 



Agath.ium.is sylvestris, 2. 



Albert.). Ceratopsian species from, 9, 78, 83, 86, 87, 91, 



92, 94, 95, 103, 104, 106. 

 albertensis (Styracosaurus), 28,* 87, 88, VIII. 

 Alphabetical List of Genera and Species, 19. 

 alticornis (Triceratops), 128. 

 Alveolar grooves, 33. 

 Anchiceratops, 33, 19, 51, 56, 57, 65, 71, 72, 73, 74, 76, 



81, 98, 100, 102, 103, 108, 110, 113. 



longirostris, 28,* 103, 104, 105, 106, 108, X. 

 ornatus, 71, 103, 107, 110, XI. 

 andrewsi (Protoceratops), 74, 75,* 76, 77,* 78, 80,* IV. 

 Angular, 37. 



apertus (Centrosaurus), 84. 

 Arrhinoceratops, 74, 81, 98, 103, 106, 107, 108, 125, 126. 



brachyops, 27, 28,* 29, 106, 110, 127, 129, XII. 

 Articular, 37. 

 Atlas, 39. 



Bearpaw formation, 6. 



belli (Chasmosaurus), 28,* 67,* 92, 93, VI, XIV. 

 Belly River formation, 1, 6. 



Ceratopsian species in, 8, 10, 26, 27, 29, 81, 83, 84, 



86, 87, 91, 92, 94, 95, 109, 110. 

 Big Horn Basin, Wyoming, 15. 



Bison alticornis, 1. 



Black Buttes, Wyoming, 3. 



Brachyceratops, 5, 39, 74, 78, 79, 84, 97, 98, 99, 100, 



102, 110. 



montanensis, 32, 97, 98, 99, IX. 

 brachyops (Arrhinoceratops), 28,* 106, XII. 

 Brain, 71, 72,* 73. 



brevicornus (Triceratops), 28,* 119, 120. 

 brevirostris (Chasmosaurus), 94, VII. 

 British Columbia, 18, 64. 

 Brontosaurus, 20, 52. 



Brown, B., 1, 52, 72, 73, 86, 102, 103, 129. 

 calicornis (Triceratops), 123, 124, 125. 

 Camptosaurus, 38, 81. 

 canadensis (Eoceratops), 91. 

 Caudal vertebrae, 49-50. 

 Centrosaurus, 1, 24, 26, 29, 30, 33, 34, 39, 40, 51, 56, 



65, 66, 68, 69, 74, 77, 78, 81, 83, 84, 85, 88, 89, 92, 



100, 101, 102, 104, 106, 113, 122, 130. 

 apertus, 3 5, 38, 40, 82, 84, 85, 86. 

 cutleri, 47, 48, 53, 58, 60, 61, 63, 64, 66, 69, 85, 



87, III. 



nexus, 28,* 30, 31,* 32-36,* 37, 41,* 43,* 44,* 46,* 

 49,* 50,* 52, 53,* 54,* 55,* 57, 58,* 59,* 60, 

 61,* 62,* 63, 64, 66, 69, 81, 82, 85, 86, 87, 98, 

 II, III. 

 nasicornus, 30, 32, 42, 43,* 45,* 47, 48, 51-57, 60, 

 61, 63, 64, 85, 86, 87, 90, 91, 113, IX. 

 Ceratopsidae, 24, 75, 78, 81. 

 Ceratops, 1, 5, 74, 81, 94, 96. 

 montanus, 26, 96, 97. 



Ceratops alticornis, 3, 96. 



Ceratofs horriilus, 96, 116. 



Ceratops beds, 6. 



Ceratops paucidens, 93. 



Ceratopsian localities, map of, 11. 



Ceratopsoidea, 6, 81. 



Cervical vertebrae, 39, 40, 41,* 42.* 



coalesced, 39,* 40. 

 Chalk Butte region, Montana, 14. 

 Chameleon, 25. 



Chasmosaurus, 24-28,* 39, 51, 54, 57, 58, 66, 68, 70, 

 74, 77, 85, 88, 89, 91, 92, 93, 98, 99, 102, 104, 106, 

 107, 113, 124, 130, 132. 



belli, 1, 27, 28,* 62, 66, 67,* 92, 93, VI, XIV. 



brevirostris, 94, 127, VII. 



kaiseni, 26, 27, 28,* 68, 85, 94, 95,* 96, 97, 110, 

 V, VII. 



restoration of, XVII. 

 Chclonia, 25. 

 Classification, 74. 



Climate of Dinosaur Environment, 20. 

 Colorado, Ceratopsian species in, 16, 128. 

 Combat, methods of, 22-23. 

 Converse County, see Niobrara Co., Wyo., 3. 

 Cope, E. D., 81. 

 Coracoid, 50,* 5 1. 

 Coronoid, 37. 

 crassus (Monoclonius), 82. 

 Crest, 24, 34. 

 Crocodilia, 65. 



cutleri (Centrosaurus), 87, III. 

 dawsoni (Monoclonius), 83, 84. 

 Dendy, A, 7 1 . 

 Dentary, 37. 



Denver formation, 3, 128. 

 Denver and Arapahoe formations, 6. 

 Diceratops, 3, 6, 107, 108, 126, 127. 

 Diplodocus, 52. 

 Discovery, history of, 3. 

 Distribution, geographic, 9, map, 11. 



geologic, 6. 

 Ditmars, R. L., 93. 

 Dja-doch-ta formation, 8, 74. 



Ceratopsian species in, 8, 74. 

 Dorsal vertebrae, 42,* 43,* 44,* 46.* 

 Edmonton formation, 1, 6. 



Ceratopsian species in, 8, 9, 26, 27, 78, 103, 104, 

 106, 109, 110. 

 elatus (Triceratops), 122, 123, XIV. 

 Environment of Ceratopsia, 20-21. 

 Eoceratops, 74, 91, 96, 108, 110. 



canadensis, 84, 91, 94, 95, 97, 98, 102. 

 cpoccipitals, 34. 



Evolutionary Changes, Progressive, 24. 

 Feeding habits, 21-22. 



