Dolorthoceras nakazawai Niko & Nishida, 2000
| 2000. | Dolorthoceras nakazawai Niko & Nishida, 2000 Holotype Niko, S. & Nishida, T. 2000 p. 53, fig. 2-1–4 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: |
| Geologic Time: | Paleozoic: |
| Niko, S. and Nishida, T., 2000: A new pseudorthoceratid cephalopod from the Kazanian (middle Late Permian) of Japan. Paleontological Research, vol. 4, no. 1, pp. 53–55. (Reference No. 0744) |
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| Ito, Y. et al., 2008, no. 74, p. 35. |

