Torres-Martínez, M. A. (2020). Columnar ossicles of Permian crinoids, including two new genera, from the Grupera Formation (Asselian-Sakmarian) of Chiapas, Mexico. Sociedad Geológica Mexicana, A.C.
Chicago-Zitierstil (17. Ausg.)Torres-Martínez, Miguel A. Columnar Ossicles of Permian Crinoids, Including Two New Genera, from the Grupera Formation (Asselian-Sakmarian) of Chiapas, Mexico. Sociedad Geológica Mexicana, A.C, 2020.
MLA-Zitierstil (9. Ausg.)Torres-Martínez, Miguel A. Columnar Ossicles of Permian Crinoids, Including Two New Genera, from the Grupera Formation (Asselian-Sakmarian) of Chiapas, Mexico. Sociedad Geológica Mexicana, A.C, 2020.
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