Traits name details
original description
Tashiro, M. & Matsuda, T. (1983). A study of the Pterotrigoniae from Japan. (1) Taxonomy. <em>Memoirs of the Faculty of Science, Kochi University, Series E, Geology.</em> 4: 13-52. page(s): 45, pl. 4, figs 6-13, text-fig. 21 [details] Available for editors
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