Yokoyamaoceras kotoi (Jimbo)
| 1993. | Yokoyamaoceras kotoi (Jimbo) Holotype Maeda, H. 1993 p. 98, fig. 4-15,16 |
| 1991. | Yokoyamaoceras kotoi (Jimbo) Holotype Matsumoto, T. 1991 p. 100, pl. 22, fig. 4 |
| 1981. | Yokoyamaoceras kotoi (Jimbo) Holotype Matsumoto, T. 1981d pl. Cr-67, fig. 8a-c |
| 1964. | Yokoyamaoceras kotoi (Jimbo) Holotype Shikama, T. 1964 p. 158, pl. 56, fig. 8a,b |
| 1963. | Yokoyamaoceras kotoi (Jimbo) Holotype Matsumoto, T. 1963 p. 44, pl. 64, fig. 2, 2a PreviousNo: I-107 |
| 1955. | Yokoyamaoceras kotoi (Jimbo) Holotype Matsumoto, T. 1955a p. 151, text-fig. 11a-c PreviousNo: I-107 |
| 1952. | Kossmaticeras kotoi (Jimbo) Holotype Shikama, T. 1952 p. 132, pl. 28, fig. 12 |
| 1943. | Kossmaticeras kotoi (Jimbo) Holotype Shikama, T. 1943 p. 208, pl. 28, fig. 12 |
| 1894. | Holcodiscus Kotoi Jimbo Holotype Jimbo, K. 1894 p. 179, pl. 5, fig. 2, 2a PreviousNo: I-107 |
| Condition: | Present |
| Material: | Microconch |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Ammonitina: Desmoceratoidea: Kossmaticeratidae: |
| Geologic Time: | Mesozoic: Cretaceous: Late Cretaceous: Coniacian: |
| Horizon: | Upper Yezo Group: |
| Locality: | Japan: Hokkaido: Obira: Tappu: Obirashibe River: |
| Jimbo, K., 1894: Beiträge zur Kenntniss der Fauna der Kreideformation von Hokkaido. Palaeontologische Abhandlungen, Neue Folge, Bd. 2, H. 3, pp. 149–194, pls. 1–9. (Reference No. 0062) |
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| Maeda, H., 1993: Dimorphism of Late Cretaceous false-Puzosiine ammonites, Yokoyamaoceras Wright and Matsumoto, 1954 and Neopuzosia Matsumoto, 1954. Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 169, pp. 97–128. (Reference No. 0659) |
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| Matsumoto, T., 1955a: Family Kossmaticeratidae from Hokkaido and Saghalien. Studies on the Cretaceous ammonites from Hokkaido and Saghalien 6. Japanese Journal of Geology and Geography, vol. 26, nos. 1–2, pp. 115–164, pls. 8–10. (Reference No. 0221) |
| Matsumoto, T., 1963: A survey of the fossils from Japan illustrated in classical monographs. Part 10. Kotora Jimbo (1894): Beiträge zur Kenntniss der Fauna der Kreideformation von Hokkaido. Palaeontological Society of Japan, 25th Anniversary Volume, pp. 41–48, pls. 60–68. (Reference No. 0226) |
| Matsumoto, T., 1981d: Ammonoids from Japan, 9 (Upper Cretaceous ammonites, 16) Atlas of Japanese fossils, no. 52-310, 4 pp., pl. Cr-67. Tsukiji Shokan Publishing Co., Ltd., Tokyo. (in Japanese) (Reference No. 0587) |
| Matsumoto, T., 1991: The mid-Cretaceous ammonites of the family Kossmaticeratidae from Japan. Palaeontological Society of Japan, Special Papers, no. 33, pp. i–vi + 1–143, pls. 1–31. (Reference No. 0662) |
| Shikama, T., 1943: A handbook of illustrated fossils from Japanese and their adjacent territories., pp. 1–282, pls. 1–46. Nippon Koubutu Syumi-no-kai, Kyoto. (in Japanese) (Reference No. 0616) |
| Shikama, T., 1952: A handbook of illustrated fossils from Japanese and their adjacent territories., pp. 1–376, pls. 1–57. Nippon Koubutu Syumi-no-kai, Kyoto. (in Japanese) (Reference No. 0617) |
| 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) |
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| Ichikawa, T., 1995, no. 33, p. 30. |
| Ichikawa, T., 1995, no. 33, p. 33. |
| Ichikawa, T., 1988, no. 15, p. 114. |
| Ichikawa, T., 1988, no. 15, p. 168. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 220. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 216. |
| Ichikawa, T., 1988, no. 15, p. 153. |
| Ichikawa, T., 1988, no. 15, p. 143. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 53. |
| Tanabe et al., 2000, no. 37, p. 503. |
| Tanabe et al., 2000, no. 37, p. 502. |
| Tanabe et al., 2000, no. 37, p. 109. |
| Tanabe et al., 2000, no. 37, p. 502. |
