Anapachydiscus ( Neopachydiscus ) naumanni (Yokoyama)
| 1981. | Anapachydiscus (Neopachydiscus) naumanni (Yokoyama) Syntype Matsumoto, T. 1981e pl. Cr-68, fig. 3a,b |
| 1964. | Anapachydiscus (Neopachydiscus) naumanni (Yokoyama) Syntype Shikama, T. 1964 p. 160, pl. 57, fig. 4a,b |
| 1963. | Anapachydiscus (Neopachydiscus) naumanni (Yokoyama) Syntype Matsumoto, T. et al. 1963 p. 29, pl. 45, fig. 6a, b PreviousNo: I-58 |
| 1954. | Anapachydiscus (Neopachydiscus) naumanni (Yokoyama) Syntype Matsumoto, T. 1954a [for 1953] p. 279, pl. 8, fig. 1a, b PreviousNo: I-58 |
| 1890. | Pachydiscus Naumanni Yokoyama Holotype Yokoyama, M. 1890 p. 187, pl. 19, fig. 6a,b |
| Condition: | Present |
| Preservation: | Replica: The original specimen in the Bayerische Staatsammlung für Paläontologie und Historische Geologie, München |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Ammonitina: Desmoceratoidea: Pachydiscidae: |
| Geologic Time: | Mesozoic: Cretaceous: Late Cretaceous: |
| Horizon: | Yezo Group: |
| Locality: | Japan: Hokkaido: Iburi: Hobetsu: |
| Matsumoto, T., 1954a [for 1953]: The Cretaceous system in the Japanese islands., pp. i–xiv + 1–324, pls. 1–20. The Japanese Society for the Promotion of Scientific Research, Ueno, Tokyo. (Reference No. 0219) |
| Matsumoto, T., 1981e: Ammonoids from Japan, 9 (Upper Cretaceous ammonites, 17) Atlas of Japanese fossils, no. 52-311, 4 pp., pl. Cr-68. Tsukiji Shokan Publishing Co., Ltd., Tokyo. (in Japanese) (Reference No. 0588) |
| Matsumoto, T., Hayami, I. and Asano, K., 1963: A survey of the fossils from Japan illustrated in classical monographs. Part 7. Matajiro Yokoyama (1890): Versteinerungen aus der japanischen Kreide. Palaeontological Society of Japan, 25th Anniversary Volume, pp. 27–32, pls. 44–51. (Reference No. 0233) |
| Shikama, T., 1964a: Index fossils of Japan., pp. 1–287, pls. 1–80. Asakura Shoten, Tokyo. (in Japanese) (Reference No. 0618) |
| 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) |
 |
| Yokoyama, M., 1890: Versteinerungen aus der japanischen Kreide. Palaeontographica, Bd. 36, pp. 159–202, pls. 18–25. (Reference No. 0714) |
| |
| Ichikawa, T., 1988, no. 15, p. 114. |
| Ichikawa, T., 1988, no. 15, p. 168. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 223. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 211. |
| Ichikawa, T., 1995, no. 33, p. 64. |
| Tanabe et al., 2000, no. 37, p. 10. |
