UMUT MM 18357
Paleontology Collections
Citation
| 1993. | Yokoyamaoceras ishikawai (Jimbo) Maeda, H. 1993 p. 107, fig. 3-7,8 |
| 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: Obira: Tappu: TP-022, the Obirashibe River: |
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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| 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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