Pravitoceras sigmoidale Yabe
| 1936. | Pravitoceras sigmoidale Yabe |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: |
| Geologic Time: | Mesozoic: |
| Sasai, H., 1936: The Izumi sandstone series in Awaji island. Journal of the Geological Society of Japan, vol. 43, no. 515, pp. 590–602, pls. 28–29. (in Japanese) (Reference No. 0612) |
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| Ichikawa, T., 1988, no. 15, p. 136. |
