90 ORIGIN AND CLASSIFICATION 



3. Chceropotamidae Choeropotamus. 



4. Anthracotheriidae Anthracothere. 



5. Merycopotamidae Merycopotamus. 



6. Cotylopidae Oreodonts. 



7. Anoplotheriidae Anoplothere. 



8. Dichodontidae Dichodon. 



Section B. TRAGULINA Chevrotains. 



9. Tragulidce Chevrotains. 



Section C. TYLOPODA Camels. 



10. Camelidce Camels and Llamas. 



11. Poebrotheriidae Poebrotherium. 



Section D. PECORA True Ruminants. 



12. Cervidce Deer. 



13. Giraffid(e Giraffe. 



14. Antilocapridce Prong-buck. 



15. Bovidw Sheep, Cattle, etc. 



Suborder 2. PERISSODACTYLA Perissodactyles. 



Fam. 16. Tapiridce Tapirs. 



1 7. Lophiodontidae Lophiodonts. 



1 8. Palaeotlieriidae Palaeotheres. 



19. Equidce Horses. 



20. Rhinocerotidce Rhinoceroses. 



2 1 . Lambdotheriidae Palaeosyops. 

 2 2. Chalicotheriidae Chalicothere. 



23. Titanotheriidae Titanothere. 



24. Macraucheniidae Macrauchenia. 



Suborder 3. TOXODONTIA Toxodonts. 



Fam. 25. Toxodontidse Toxodon. 

 26. Typotheriidae Typothere. 



Suborde'r 4. CONDYLARTHRA. 



Fam. 27. Periptychidae Periptychus. 



28. Phenacodontidae Phenacodus. 



29. Meniscotheriidae Meniscothere. 



Suborder 5. HYRACOIDEA Hyraces. 

 Fam. 30. Hyracidce Hyrax. 



Suborder 6. AMBLYPODA. 



Fam. 31. Pantolambdidae Pantolambda. 



32. Coryphodontidae Coryphodon. 



33. Uintatheriidae Uintathere. 



Suborder 7. PROBOSCIDEA Proboscideans. 

 Fam. 34. Dinotheriidae Dinothere. 

 35. ElephantidcK Elephants. 



