Margarita umbilicalis Broderip & Sowerby
| 1920. | Margarita umbilicalis Broderip & Sowerby |
| Condition: | Present |
| Taxonomy: | Mollusca: Gastropoda: Trochidae: |
| Geologic Time: | Cenozoic: |
| Yokoyama, M., 1920: Fossils from the Miura peninsula and its immediate north. Journal of the College of Science, Imperial University of Tokyo, vol. 39, art. 6, pp. 1–193, pls. 1–20. (Reference No. 0464) |
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| Ichikawa, T., 1983, no. 9, p. 265. |
