Subprionocyclus neptuni Geinitz
| 1996. | Subprionocyclus neptuni Geinitz Landman, N. H. et al. 1996 p. 366, fig. 17F |
| 1996. | Subprionocyclus neptuni (Geinitz) Tanabe, K. & Landman, N. H. 1996 p. 160, appendix |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Ammonitina: Acanthoceratoidea: Collignoniceratidae: |
| Geologic Time: | Mesozoic: Cretaceous: Late Cretaceous: Turonian: |
| Horizon: | Middle Yezo Group: |
| Locality: | Japan: Hokkaido: Urakawa: Efue River: |
| Landman, N. H., Tanabe, K. and Shigeta, Y., 1996: Ammonoid embryonic development. In: Landman, N. H., Tanabe, K. and Davis, R. A. (eds.) Ammonoid Paleobiology, Volume 13 of Topics in Geobiology, pp. 343–405. Plenum Press, New York. (Reference No. 0729) |
| Tanabe, K. and Landman, N. H., 1996: Septal neck-siphuncular complex of ammonoids. In: Landman, N. H., Tanabe, K. and Davis, R. A. (eds.) Ammonoid Paleobiology, Volume 13 of Topics in Geobiology, pp. 129–165. Plenum Press, New York. (Reference No. 0767) |
| Tanabe, K., Ito, Y., Moriya, K. and Sasaki, T., 2000: Database of Cretaceous ammonite specimens registered in the Department of Historical Geology and Paleontology of the University Museum, University of Tokyo. The University Museum, The University of Tokyo, Material Reports, no. 37, pp. i–iv + 1–509. (Reference No. 0879) |
 |
| Ito, Y. et al., 2008, no. 74, p. 14. |
| Ito, Y. et al., 2008, no. 74, p. 81. |
| Tanabe et al., 2000, no. 37, p. 319. |
| Tanabe et al., 2000, no. 37, p. 360. |
