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| Author | : | Stanton, T.W. |
| Year of publication | : | 1893 |
| Title | : | The Colorado Formation and its invertebrate fauna. |
| Journal | : | United States Geological Survey, Bulletin |
| Vol/No/Pages/Plates | : | 106: 13-288, 45 pls. |
| Published in | : | Washington, D.C. |