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| Author | : | Alencáster, G. |
| Year of publication | : | 1971 |
| Title | : | Rudistas del Cretácico superior de Chiapas, parte I. |
| Journal | : | Paleontología mexicana |
| Vol/No/Pages/Plates | : | 34: 1-91, 2 figs., 24 pls., 5 tabs. |
| Published in | : | Mexico City |