Echigoceras sasakii Niko, 2002
| 2002. | Echigoceras sasakii Niko, 2002 Paratype Niko, S. 2002b p. 351, figs. 1-3–7,11,12, 3-1,2, 4-3 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: |
| Geologic Time: | Paleozoic: |
| Niko, S., 2002b: Echigoceras sasakii, a new Middle Carboniferous nautilid from the Omi limestone group, central Japan. Paleontological Research, vol. 6, no. 4, pp. 351–355. (Reference No. 0741) |
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| Ito, Y. et al., 2008, no. 74, p. 34. |
