Praeconia cf. tetragona (Terquem)
| 1975. | Praeconia cf. tetragona (Terquem) Tamura, M. 1975c pl. J-9, fig. 10a, b |
| 1959. | Praeconia cf. tetragona (Terquem) Hayami, I. 1959h p. 71, pl. 7, fig. 15; pl. 8, fig. 2 |
| Condition: | Present |
| Taxonomy: | Mollusca: Bivalvia: Astartidae: |
| Geologic Time: | Mesozoic: |
| Hayami, I., 1959h: Lower Liassic lamellibranch fauna of the Higashinagano formation in west Japan. Journal of the Faculty of Science, University of Tokyo, Section 2, vol. 12, pt. 1, pp. 31–84, pls. 5–8. (Reference No. 0032) |
 |
| Tamura, M., 1975c: Mesozoic molluscan fossils of Japan, 1 (Jurassic bivalves inner zone of southwestern Japan). Atlas of Japanese fossils, no. 42-249, 4 pp., pl. J-9. Tsukiji Shokan Publishing Co., Ltd., Tokyo. (in Japanese) (Reference No. 0625) |
| Ichikawa, T., 1988, no. 15, p. 187. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 30. |
