Extinct Mammalia of Dakota and Nebraska: Plate III
This is Plate III from the "Extinct Mammalia of Dakota and Nebraska" (1869). It shows the side view of Hyaenodon horridus. The gray matter underneath the back of the skull is matrix (rock that surrounds the fossil).
The following are other plates from "Extinct Mammalia of Dakota and Nebraska" (1869):
- Plate II: featuring Hyaenodon crucians
- Plate IV: featuring Hoplophoneus primaevus
- Plate VI: featuring Merycoidodon culbertsonii & Merycoidodon gracilis
- Plate XVII: featuring Merychippus & Protohippus