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| Author | : | Conrad, T.A. |
| Year of publication | : | 1857 |
| Title | : | Descriptions of Cretaceous and Tertiary fossils. |
| Volume title | : | Emory, W.H. : Report of the United States and Mexican boundary survey. |
| Vol/No/Pages/Plates | : | p. 141-174, 21 pls. |
| Published in | : | Washington, D.C. |