MolluscaBase source details
Kobayashi, T. & Kaseno, Y. (1947). A new liassic species of Trigonia s. str. (i. e. Lyriodon) from the Kitakami mountains, Nippon. Japanese Journal of Geology and Geography. 20: 41-44.
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Kobayashi, T. & Kaseno, Y.
1947
A new liassic species of <em>Trigonia</em> s. str. (i. e. <em>Lyriodon</em>) from the Kitakami mountains, Nippon
Japanese Journal of Geology and Geography
20: 41-44
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Trigonia sumiyagura T. Kobayashi & Kaseno, 1947 † (original description)
