CONTENTS xiii 



Page 



Endocranial natural casts 259 



Protoreodon 259 



Merycoidodon 259 



Eporeodon 263 



Mesoreodon 265 



Promerycochoerus 265 



Merycochoerus 266 



Cyclopidius 266 



Conclusion and summary 266 



Sinus paranasales 269 



Causes of extinction 271 



Tables of measurements 277 



Table 1. Bathygenys, Hyomeryx, Oreonetes, Protoreodon 279 



Table 2. Limnenetes, Merycoidodon 280 



Table 3. Eporeodon 281 



Table 4. Eporeodon (cont.) 282 



Table 5. Mesoreodon, Promerycochoerus 283 



Table 6. Promerycochoerus (cont.) 284 



Table 7. Promerycochoerus (cont.) 285 



Table 8. Merycochoerus, Pronomotherium 286 



Table 9. Ticholeptus 287 



Table 10. Merycoides, Paroreodon, Phenacocoelus, Poatrephes 288 



Table 11. Metoreodon 289 



Table 12. Merychyus, Oreodontoides 290 



Table 13. Cyclopidius, Leptauchenia 291 



Bibliography 293 



Description of plates (even pages only) 312 



Index 415 



