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UMUT MM 07625a

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Yokoyamaoceras ishikawai (Jimbo)

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Citation
1993.

Yokoyamaoceras ishikawai (Jimbo)

Maeda, H. 1993 p. 110, fig. 4-9,10

1991.

Yokoyamaoceras kotoi (Jimbo) Holotype

Matsumoto, T. 1991 p. 100, pl. 23, fig. 2

1955.

Yokoyamaoceras jimboi Matsumoto Holotype

Matsumoto, T. 1955a p. 153, pl. 9, fig. 4a, b

PreviousNo: I-349a

Condition: Present
Material:Microconch
Taxonomy:Mollusca: Cephalopoda: Ammonitida: Ammonitina: Desmoceratoidea: Kossmaticeratidae:
Geologic Time:Mesozoic: Cretaceous: Late Cretaceous: Santonian:
Horizon:Upper Yezo Group:
Locality:Japan: Hokkaido: Hobetsu: The Saushi-sanushibe Valley:
Reference
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., 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)
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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Maeda, H., 1993:
(Reference No. 0659)
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