| Crocodilia | 6 | |
| Chelonia | 5 | |
| — | 11 |
PISCES.
| Teleocephali | 3 | |
| Nematognathi | 1 | |
| Cycloganoidei | 6 | |
| Plagiostomata | 3 | |
| Incertæ sedis | 1 | |
| — | 14 | |
| — | ||
| Total | 56 | |
EXPLANATION OF PLATE A.
Figure about one fourth natural size.
Uintatherium Leidianum.
| Crocodilia | 6 | |
| Chelonia | 5 | |
| — | 11 |
PISCES.
| Teleocephali | 3 | |
| Nematognathi | 1 | |
| Cycloganoidei | 6 | |
| Plagiostomata | 3 | |
| Incertæ sedis | 1 | |
| — | 14 | |
| — | ||
| Total | 56 | |
EXPLANATION OF PLATE A.
Figure about one fourth natural size.
Uintatherium Leidianum.