Obtortio septentrionalis (Tokunaga)
| 1935. | Obtortio septentrionalis (Tokunaga) |
| Condition: | Missing |
| Taxonomy: | Mollusca: Gastropoda: Diastomatidae: |
| Geologic Time: | Cenozoic: |
| Otuka, Y., 1935b: The Oti graben in southern Noto peninsula, Japan. (Part 3). Bulletin of the Earthquake Research Institute, Tokyo Imperial University, vol. 13, pt. 4, pp. 846–909, pls. 53–57. (Reference No. 0386) |
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| Ichikawa, T., 1983, no. 9, p. 93. |
