(ofGeratrigonia hosourensis var. convexa T. Kobayashi, 1954 †)Kobayashi, T.; Mori, K. (1954). Studies on the Jurassic trigonians in Japan. Part. II. Prosogyrotrigonia and the Trigoniinae. <em>Japanese Journal of Geology and Geography.</em> 25: 155-175. page(s): 172, pl. 16, fig. 9a, b [details] Available for editors [request]
original description(ofGeratrigonia hosourensis var. convexa T. Kobayashi, 1954 †)Kobayashi, T.; Mori, K. (1954). Studies on the Jurassic trigonians in Japan. Part. II. Prosogyrotrigonia and the Trigoniinae. <em>Japanese Journal of Geology and Geography.</em> 25: 155-175. page(s): 172, pl. 16, fig. 9a, b [details] Available for editors [request]
Present Inaccurate Introduced: alien Containing type locality
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