Siphonalia spadicea (Reeve)
| 1970. | Siphonalia spadicea (Reeve) Iwasaki, Y. 1970b pl. N-17, fig. 8 |
| 1970. | Siphonalia cf. spadicea (Reeve) Iwasaki, Y. 1970a p. 412, pl. 2, fig. 5 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Buccinidae: |
| Geologic Time: | Cenozoic: |
| Iwasaki, Y., 1970a: The Shiobara-type molluscan fauna. An ecological analysis of fossil molluscs. Journal of the Faculty of Science, University of Tokyo, Section 2, vol. 17, pt. 3, pp. 351–444, pls. 1–7. (Reference No. 0353) |
| Iwasaki, Y., 1970b: Miocene molluscan fossils from the Tanakura-Hanawa area, Fukushima Pref., 1. Atlas of Japanese fossils, no. 10-57, 4 pp., pl. N-17. Tsukiji Shokan Publishing Co., Ltd., Tokyo. (in Japanese) (Reference No. 0526) |
| Ichikawa, T., 1988, no. 15, p. 23. |
| Ichikawa, T., 1983, no. 9, p. 30. |
