Freeman Bibliographical Database
| Identifier: | A5041 |
| Date: | 1872 |
| Concise reference: | Marsh, Othniel Charles. 1872. Preliminary description of Hesperornis regalis, with notices of four other new species of cretaceous birds. American Journal of Science and Arts 3d ser. 3: 360-365. [Darwin Pamphlet Collection] |