Ankyloceras takii Niko & Nishida, 2003
| 2003. | Ankyloceras takii Niko & Nishida, 2003 Paratype Niko, S. & Nishida, T. 2003a p. 105, fig. 1-4–7 |
| Condition: | Present |
| Taxonomy: | Mollusca: |
| Geologic Time: | Paleozoic: |
| Niko, S. and Nishida, T., 2003a: First oncocerid cephalopod from Japan. Proceedings of the Japan Academy, Series B, vol. 79, no. 4, pp. 105–107. (Reference No. 0818) |
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| Ito, Y. et al., 2009, no. 80, p. 26. |
