UMUT MM 18680-1
Paleontology Collections
| Condition: |
Present |
| Taxonomy: | Mollusca: Cephalopoda: Ammonitida: Lytoceratina: Tetragonitoidea: Tetragonitidae: |
| Geologic Time: | Mesozoic: Cretaceous: Late Cretaceous: Turonian: |
| Horizon: | Middle Yezo Group: |
| Locality: | Japan: Hokkaido: Obira: Tappu: R2129, upper course of the Obirashibe River: |
Reference
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| Shigeta, Y., 1989: Systematics of the ammonite genus Tetragonites from the Upper Cretaceous of Hokkaido. Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 156, pp. 319–342. (Reference No. 0687) |
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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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