LIST OF ILLUSTRATIONS. XI 



Page. 



60. Left radius, ulna and foot of Ceratosaurus nasicornis Marsh, anterior view 104 



61. Left radius of Ceratosaurus nasicornis Marsh, posterior view 105 



62. Left fore foot of Ceratosaurus nasicornis Marsh, anterior view 105 



63. Pelvis of Ceratosaurus nasicornis Marsh, lateral view 107 



64. Right femur of Ceratosaurus nasicornics Marsh, front, inside and back views 109 



65. Right tibia, fibula, astragalus and calcaneum of Ceratosaurus nasicornis Marsh, front, side and 



back views Ill 



66. Anterior caudal vertebra of Dryptosaurusl potens (Lull) 117 



67. Sacrum and ilia of Ornithomimus sedens Marsh, inferior view 132 



68. First caudal vertebra of Ornithomimus sedens Marsh, side and front views 134 



69. Caudal vertebrae of Ornithomimus sedens Marsh, side and front views 134 



70. Metatarsal of Ornithomimus tenuis Marsh, all views 136 



71. Metatarsals of Ornithomimus affinis, front view 138 



72. Metatarsal of Ornithomimus affinis, back and side views 139 



73. Proximal phalanx of Ornithomimus affinis, front and side views 139 



74. Second phalanx of Ornithomimus affinis, front and side views 140 



75. Second phalanx of Ornithomimus affinis, front view 140 



76. Ungual phalanx of Ornithomimus affinis, top and side views 141 



77. Caudal vertebra of Ornithomimus affinis, top and side views 141 



78. Sacral vertebral centrum Ornithomimus affinis, dorsal and lateral views, 142 



79. Metatarsal of Ornithomimus minutus Marsh 143 



