Karsteniceras obatai Matsukawa
| 1996. | Karsteniceras obatai Matsukawa Landman, N. H. et al. 1996 p. 391, appendix 1 |
| 1993. | Karsteniceras obatai Matsukawa Shigeta, Y. 1993 p. 134, table 1 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Ancyloceratina: Ancyloceratoidea: Ancyloceratidae: |
| Geologic Time: | Mesozoic: Cretaceous: Early Cretaceous: Barremian: |
| Horizon: | Choshi Group: |
| Locality: | Japan: Chiba: Choshi: Isejigaura, Choshi Peninsula: |
| 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) |
| Shigeta, Y., 1993: Post-hatching early life history of Cretaceous Ammonoidea. Lethaia, vol. 26, pp. 133–145. (Reference No. 0689) |
| 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. 11. |
| Ichikawa, T., 1995, no. 33, p. 48. |
| Tanabe et al., 2000, no. 37, p. 116. |
