ILLUSTRATIONS 



xv 



FIG. 



66. Skull of Pteranodon longiceps . 



67. Jaw of Phascolotherium bucklandi 



68. Jaw and Teeth of Spalacothcrium tricuspidens 



69. Jaw of Triconodon mordax 



70. Drawing of Archa?opteryx tnacrura . 



71. Skull of Archceopteryx siemensi 



72. Skeleton of Phenacodus primcevus 



73. Skeleton of Uintatherhim ingens 



74. Skull of Uintatherhim comutum 



75. Skeleton of Titanotherium robustum 



76. Skull of Arsinoitherium zitteli . 



77. Skeleton of JTycznodon cruentus 



78. Skeleton of Hyopotamns brachyrhynchus . 



79. Outline and Skeleton of Anoplotherium commune 



80. Outline Restoration of PalcEotherium magnum 



8 1 . Skull of Moeritherium lyonsi . 



82. Skulls of Ancestral Elephants . 



83. Skeleton of Tetrabelodon angustidens 



84. Restoration of Tetrabelodon angustidens 



85. Skeleton of Mastodon americanus 



86. Skeleton of Elephas primigenius 



87. Skeleton of Toxodon platens is . 



88. Skeleton of Glyptodon clavipes 



89. Restoration of Megatherium giganteum 



90. Skeleton and Outline of Mylodon robustus 



91. Skeleton of Scelidotherium leptocephalum 



92. Skull of Diprotodon australis . 



93. Skull of Thylacoleo carnifex 



94. Skull of Macharodus neogceus . 



95. Skeleton of Cervus giganleus . 



96. Conocoryphe sultzeri (an early Trilobite) 



97. Paradoxides bohemicus (an early Trilobite) 



98. Acidaspis dufresnoyi (a late Trilobite) 



99. Ceratites nodosus (early Ammonite) . 



100. Trachyceras aon (early Ammonite) . 



101. Crioceras emerici (Cretaceous Ammonite) 



102. Heteroceras emerici (Cretaceous Ammonite) 



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