Operculina sp.
| 1901. | Operculina sp. Yoshiwara, S. [Tokunaga, S.] 1901 pl. 14, pl.1, fig. 2 |
| Condition: | Missing |
| Taxonomy: | Protoctista: |
| Geologic Time: | Cenozoic: |
| Yoshiwara, S. [Tokunaga, S.], 1901: Notes on the raised coral reefs in the islands of the Riukiu curve. Journal of the College of Science, Imperial University of Tokyo, vol. 16, art. 1, pp. 1–14, pls. 1–2. (Reference No. 0504) |
 |
| Ichikawa, T., 1983, no. 9, p. 393. |
