| Authors(s) | Cope, E. D. |
| Year | 1864 |
| Title | On the limits and relations of the Raniformes. Proc. Acad. Natur. Sci. Philadelphia 16: 181-183. |
| Authors(s) | Cope, E. D. |
| Year | 1864 |
| Title | On the limits and relations of the Raniformes. Proc. Acad. Natur. Sci. Philadelphia 16: 181-183. |