Polyptychoceras pseudogaultinum (Yokoyama, 1890)
| 1996. | Polyptychoceras pseudogaultinum (Yokoyama, 1890) Hewitt, R. A. 1996 p. 316, table 2 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: |
| Geologic Time: | Mesozoic: |
| Hewitt, R. A., 1996: Architecture and strength of the ammonoid shell. In: Landman, N. H., Tanabe, K. and Davis, R. A. (eds.) Ammonoid Paleobiology, Volume 13 of Topics in Geobiology, pp. 297–338. Plenum Press, New York. (Reference No. 0722) |
| Ito, Y. et al., 2008, no. 74, p. 7. |
