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Triassic bryozoans from the hidaka group in hokkaido japan


, : Triassic bryozoans from the hidaka group in hokkaido japan. Transactions & Proceedings of the Palaeontological Society of Japan New Series (114): 77-86

Bryozoan species [5] from the Hidaka Group: Leioclema sugiyamai sp. nov., Leioclema sp. indeterminate, Pseudobatostomella kobayashii Sakagami, Dyscritella hidakaensis sp. nov. and Dyscritella sp. indeterminate are described. L. sugiyamai and P. kobayashii, which was described originally from the Upper Triassic Kochigatani Series of the Sakawa basin, are identical with Batostomella (1) and Batostomella? (2), respectively, both of which were recorded from the Hidaka Group by Sugiyama (1941). This bryozoan fauna is Late Triassic probably Early Carnian) in age. It also is supported by the conodont fauna associated with the bryozoans.

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Related references

Igo, H.; Koike, T.; Igo, H.; Kinoshita, T., 1974: On the occurrence of Triassic conodonts from the Sorachi Group in the Hidaka Mountains, Hokkaido. Journal geol Soc Japan, 803: 135-136

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