Freeman Bibliographical Database
| Identifier: | A4080 |
| Date: | 1836 |
| Concise reference: | Egerton, Philip Grey. 1836. On certain peculiarities in the cervical vertebrae of the Ichthyosaurus, hitherto unnoticed. Proceedings of the Geological Society of London 2d ser. 5: 187-193. [Darwin Pamphlet Collection] |