Kobayashi, T. (1954). Izumonauta, a new genus of the Argonautinae, with a note on their rare and gregarious fossil occurrence. <em>Japanese Journal of Geology and Geography.</em> 25: 21-34.[details]
original descriptionKobayashi, T. (1954). Izumonauta, a new genus of the Argonautinae, with a note on their rare and gregarious fossil occurrence. <em>Japanese Journal of Geology and Geography.</em> 25: 21-34.[details]
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