PAGE 



73. Portion of ramus of {1)Tupaiodon minutus 268 



74. Portion of ramus of Ankylodon annectens 270 



75. Braincast of Rhynchippus equinus 275 



76. Braincast of Notohippidae, gen. et sp. indet 280 



77. Braincast of Nesodon imbricatus 283 



78. Braincast of Adinotherium ovinum 287 



79. Braincast of Homalodotherium cunninghami 289 



80. Braincast of Typotheriopsis internum 294 



81. Section at Polecat Creek gravel pits, Coles County, Illinois 305 



82. Mandible of Canis familiaris 307 



83. Skull of Ceratosuchus burdoshi 317 



84. Skull of Leidyosuchus riggsi 319 



85. Cheekteeth of Pseudocynodictis gregarius 325 



86. Cheekteeth of Bassariscus astutus 326 



87. Cheekteeth of Cynarctoides acridens 328 



88. Teeth of Cynarctoides acridens 328 



89. Maxilla and upper dentition of Cynarctus crucidens 329 



90. Cheekteeth of Cynarctus crucidens 330 



91. Cheekteeth of Aletocyon multicuspis 331 



92. Cheekteeth of Procyon lotor 332 



93. Cheekteeth of Ailurus fulgens 333 



94. Cheekteeth of Ailuropoda melanoleuca 334 



95. Facial region of skull of Amphicyon riggsi 343 



96. Ramus and lower dentition of Amphicyon riggsi 344 



97. Axis of Amphicyon riggsi 346 



98. Axis vertebrae of Canis, Daphaenodon and Amphicyon riggsi 347 



99. Portion of ulna of Amphicyon riggsi 349 



100. Skull and jaws of Sparactolambda looki 355 



101. Right lower dentition of Sparactolambda looki 357 



102. Left manus of Sparactolambda looki 358 



103. Right pes of Sparactolambda looki 360 



104. Skeleton of Barylambda faberi 363 



105. Skeleton of Barylambda faberi 364 



106. Skull and jaws of Haplolambda quinni 366 



107. Cheekteeth of Haplolambda quinni 367 



108. Skeleton as mounted of Haplolambda quinni 368 



viii 



