| Publication Type: | Journal Article |
| Year of Publication: | 1878 |
| Authors: | E. D. Cope |
| Journal: | American Naturalist |
| Volume: | 12 |
| Issue: | 4 |
| Pagination: | 252-253 |
| Date Published: | 04/1878 |
| Short Title: | American Naturalist |
| Publication Type: | Journal Article |
| Year of Publication: | 1878 |
| Authors: | E. D. Cope |
| Journal: | American Naturalist |
| Volume: | 12 |
| Issue: | 4 |
| Pagination: | 252-253 |
| Date Published: | 04/1878 |
| Short Title: | American Naturalist |