The Pennsylvanian Gastropod Genera Orthonema Meek and Worthen and Streptacis Meek from the Appalachian Basin
| Autor: | Anderson, J. R., Hoare, R. D., Sturgeon, M. T. |
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| Zdroj: | Journal of Paleontology, 1985 Sep 01. 59(5), 1011-1027. |
| Databáze: | JSTOR Journals |
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