Helcioniscus pallidus (Gould)
1925. | Helcioniscus pallidus (Gould) |
Condition: | Missing |
Taxonomy: | Mollusca: Gastropoda: Patellidae: |
Geologic Time: | Cenozoic: |
Yokoyama, M., 1925b: Molluscan remains from the middle part of the Jo-ban coal-field. Journal of the College of Science, Imperial University of Tokyo, vol. 45, art. 7, pp. 1–23, pls. 1–3. (Reference No. 0474) |
Ichikawa, T., 1983, no. 9, p. 312. |