X LIST OF ILLrs'IRATloNS IN TP^XT. 



FIG. PAGE 



71. Portion of tail-sheath of Hoplojjhonis, from the Paiiipa 



Formation of Buenos Aires ...... 76 



72. Skull and mandible of Dijyrotodon a Kstridin , from tlie Pleisto- 



cene of Queensland ....... 78 



73. Skull and mandible of Thylucolco rr//'»7yrir, from tlie Pleisto- 



cene of Australia ........ 79 



74. Lower jaw and teetli of TrirniioiJon iiinr/In.r, from tlie 



Purbeck Beds of Swanage ...... 80 



75. Part of lower jaw and teeth of Spalacot/irviuiii tricusindcns^ 



from the Purbeck Beds of Swanage .... 80 



76. Lower jaw and teeth of Plinscolotlierinm hncMandi, from 



the Stonesfield Slate of Oxfordshire .... 81 



77. Lower jaws of American Jurassic Manmials. (After Marsh) 82 



78. Upper molar tooth of Neoplagiaiilax eocrnus, from the Lower 



Eocene of Eheiins, France ...... 83 



79. Lower jaw and teeth of Plfirjiaiilax hccMcsi, from the 



Purbeck Beds of Swanage ...... 83 



80. Jaws and teeth of ]\lultituberculata, from the Jurassic of 



Wyoming, U.S.A. (After Marsh) 84 



81. Skull of Tritylodon longxvns, from the Karoo Formation of 



South Africa ........ 85 



82. Lower molar teeth of the existing Australian ]\Ionotreme, 



OrnitJwrliynchus. (After C. Stewart) . . . .85 



83. Skull and mandible of Odontopteryx toliapica, from the 



London Clay of Sheppey ...... 87 



84. Skeleton of IIes2)crornis regalis, honi the Cretaceous of 



Kansas, U.S.A. (After Marsh) ..... 88 



85. Skeleton of Iclitliyornis victor, from tlie Cretaceous of 



Kansas, U.S.A. (After Marsh) ..... 89 



86. Eestored skull and mandible of Phororliaclios longissimus, 



fi'om the Santa Cruz Formation of Patagonia ... 90 



87. Diagi'ammatic sketch of the fossil ArcJuiojjti njx vwcriira, 



from the Lithograjjliic Stone of Bavaria ... 94 



88. Head of ArchfuojAcryx siemcnsi., from the Lithographic 



Stone of Bavaria. (After Dames) ..... 95 



