(ofTrigonia hosourensis Yokoyama, 1904 †)Yokoyama, M. (1904). On some Jurassic fossils from Rikuzen. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 18, 1-13.[details]
MolluscaBase eds. (2024). MolluscaBase. Geratrigonia hosourensis (Yokoyama, 1904) †. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=932941 on 2024-08-04
Marine Species Traits editorial board (2024). Marine Species Traits. Geratrigonia hosourensis (Yokoyama, 1904) †. Accessed at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=932941 on 2024-08-04
original description(ofTrigonia hosourensis Yokoyama, 1904 †)Yokoyama, M. (1904). On some Jurassic fossils from Rikuzen. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 18, 1-13.[details]
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