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| Author | : | Cragin, F. |
| Year of publication | : | 1892 |
| Title | : | Contribution to the invertebrate paleontology of the Texas Cretaceous. |
| Journal | : | Annual Report of the Geological Survey of Texas |
| Vol/No/Pages/Plates | : | 4 (for 1891): 141-243, pls. 24-46 |
| Published in | : | Austin, Texas |