Freeman Bibliographical Database
| Identifier: | A4867 |
| Date: | 1852 |
| Concise reference: | Leidy, Joseph. 1852. On the osteology of the head of Hippopotamus, and a description of the osteological characters of a new genus of Hippopotamidae. Journal of the Academy of Natural Sciences of Philadelphia 2: 207-224. [Darwin Pamphlet Collection] |