180 



DINOCERATA. 



(1- 

 (2 

 (3. 



(4. 

 (5. 

 (6. 



(7- 

 (8. 

 (9. 



(10. 



(11. 



(12. 



(13. 



(U. 



Alisphenoid canal. 



Odontoid process, conical. 



Vertebive, flat. 



Scapula, acuminate. 



Sternal bones, flat. 



Iliac bones, transverse. 



Fibula, complete. 



Femur and tibia in line. 



Femur without third trochanter. 



Five digits in manus and pes. 



Axis of foot through third digit. 



Fibula articulating with calcaneum. 



Astragalus, flat. 



Digits enclosed in a common integument 



The characters found in the Dinocerata, and not in the existing 

 Prohoscidea are more important, and more numerous. Among these 

 characters are the following : 



(1- 



(2. 



(3. 



(4. 



(5. 



(6. 



(7. 



(8. 



(9. 

 (10. 

 (11. 

 (12. 

 (13. 

 (14. 



Brain, small and smooth. 



No upper incisors. 



Canine teeth above and below. 



Anterior nares in front. 



Pre-nasal bones. 



Maxillo-turbinal bones, well developed. 



Sknll surmounted with protuberances. 



Premaxillaries not meeting frontals. 



Malar bone forming anterior part of zygomatic arch. 



Post-glenoid process. 



Condyle of lower jaw, posterior. 



Neck of medium length. 



Three bones in first tarsal row. 



Astragalus articulating with cuboid. 



