Epitonium ( Acutiscala ) conjunctum (Yokoyama, 1922)
| 1973. | Epitonium (Acutiscala) conjunctum (Yokoyama, 1922) Lectotype Oyama, K. 1973 p. 28, pl. 6, fig. 27a, b |
| 1964. | Epitonium (Acutiscala) conjuncta (Yokoyama) Syntype Shikama, T. 1964 p. 104, pl. 29, fig. 24 |
| 1954. | Epitonium (Acutiscala) conjuncta (Yokoyama, 1922) Lectotype Taki, I. & Oyama, K. 1954 pl. 24, fig. 18 |
| 1922. | Scalaria conjuncta Yokoyama, 1922 Syntype Yokoyama, M. 1922a p. 87, pl. 4, fig. 18 |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Epitoniidae: |
| Geologic Time: | Cenozoic: Pleistocene: |
| Horizon: | Imba Formation: |
| Locality: | Chiba: Shonan-cho: Tega: |
| Oyama, K., 1973: Revision of Matajiro Yokoyama's type Mollusca from the Tertiary and Quaternary of the Kanto area. Palaeontological Society of Japan, Special Papers, no. 17, pp. 1–148, pls. 1–57. (Reference No. 0411) |
| Shikama, T., 1964a: Index fossils of Japan., pp. 1–287, pls. 1–80. Asakura Shoten, Tokyo. (in Japanese) (Reference No. 0618) |
| Taki, I. and Oyama, K., 1954: Matajiro Yokoyama's the Pliocene and later faunas from the Kwanto region in Japan. Palaeontological Society of Japan, Special Papers, no. 2, pp. 1–68, pls. 1–49. (Reference No. 0441) |
| Yokoyama, M., 1922a: Fossils from the upper Musashino of Kazusa and Shimosa. Journal of the College of Science, Imperial University of Tokyo, vol. 44, art. 1, pp. 1–200 + i–viii, pls. 1–17. (Reference No. 0465) |
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| Ichikawa, T., 1983, no. 9, p. 135. |
| Ichikawa, T., 1988, no. 15, p. 172. |
| Ichikawa, T., 1983, no. 9, p. 203. |
| Ichikawa, T., 1983, no. 9, p. 272. |
