INDEX 



[Figures in black-face type indicate descriptions.] 



Acantliopholis 101, 116, 118 



Acetabular border 57 



Acetabulum 55, 77-79, 82, 107 



Alcova, fossil remains discovered near Ill 



AHsphenoids 27, 30, 31, 32, 42, 43 



Alligator 32, 42, 43 



Allosaurua 2 



fragilis 25 



Angular 27, 37, 38, 39 



Ankylosaurus 44, 66, 100, 115, 118 



Armor, dermal 64, 91-100, 101-103, 105, 107, 



114, 118-131, 122-123, 124, 126 



arrangement of 96-99 



gular 114,118 



nuchal 114, 115 



Articular 27, 37, 39 



Arundel formation 30 



Ashley, E. G., work of 2 



Astragalus 84, 85, 86, 87, 101, 103, 105, 109 



Atlantosaurus beds 105 



Atlas 45, 46, 47, 53, 63, 105, 124 



Auditory meatus, internal 33 



Axis 45, 56, 47, 53, 63, 105 



B. 



Baflioccipital 27, 38, 29, 30, 41 



Basisphenoid 27, 28, 30, 31, 32, 36, 41-43 



Beecher, C. E 97 



Beekley, A. L., fossil remains discovered by 122 



Berger, Frederick, drawings by 2 



Big Horn County, see Wyoming. 



Birds 101 



Bond, Frank, restoration by 123 



Boss, N. H., work of 2 



Brachial enlargement, see Neural Canal. 



Brachyceratops montanensis Gilmore 32, 88 



Brain, description of 43, 44, 56, 57, 101 



cavity 102, 103 



Bressler, C. V., work of 2 



Brontosaurus 25, 76, 88, 90 



excelsus Marsh 2, 88 



Broom, R 32 



51873°— Bull. 89—14 11 



Brown, Barnum, on Triceratops 66 



on Ankylosaurus 66, 115 



Brown, Fred, fossil remains collected by. . . 26 



work of 3,4 



Buffalo Gap Station, South Dakota, fossil 

 specimens found near 114 



C. 



Calcaneum 84-86, 87, 103, 105, 109 



Calico Canyon, South Dakota, fossil speci- 

 mens found in 114 



Camptonotidae 109 



Camptosauridae 30, 84, 109 



Camptosaurus 2, 27-30, 32-34, 37, 39^2, 44, 



45, 47, 50, 51^61, 66, 84, 114, 125 



browni Gilmore 4 



depressus Gilmore 4, 114 



dispar Marsh 4, 88 



medius Marsh 4, 25 



nanus Marsh 4 



Canal, haemal 61 



Canon City, Colorado, fossil specimens 



found near 24, 105 



Carapace 118 



Carbon County, see Wyoming 



Carina 100 



Carotid arteries , 30, 43 



Carpals 71, 73, 83, 101, 109, 125 



Carpus 70-73, 75, 105 



Caudals, see Vertebrae. 



Caudo-sacral 54, 55, 57, 59 



Cavity, medullary (jg 



Centrum 54, 57, 62, 117 



Ceratodus giintheri Marsh 25 



Ceratopsia 41, 77, 83, 110 



Ceratopsian 32, 68, 84, 122, 125, 126 



Ceratosaurus nasicornis Marsh 25 



Cerebellum 43 



Cervical vertebrae 47-49,50, 91, 102, 124, 125 



Chevron 60, 61, 62, 98, 103, 105 



Claosaurus 66 



Claw 90 



