Bitaunioceras undulatum Niko & Nishida
| 1987. | Bitaunioceras undulatum Niko & Nishida Paratype Niko, S. & Nishida, T. 1987 p. 37, fig. 2-1,2,3 |
| Condition: | Present |
| Taxonomy: | Mollusca: Cephalopoda: |
| Geologic Time: | Paleozoic: |
| Niko, S. and Nishida, T., 1987: Early Permian cephalopods from the Mizuyagadani formation, Fukuji district, central Japan. Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 146, pp. 35–41. (Reference No. 0678) |
 |
| Ichikawa, T., 1995, no. 33, p. 41. |
