Reference : - #019 Mizugaki (1985)

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#019 1985, Mizugaki, K. Radiolarian fossils from the Chichibu system, northwest of Hamana Lake, central Japan. Bull. Mizunami Fossil Museum, no.12, p.171-182, pl.43-47, text-fig.1-5, table 1. (in Japanese with English abstract)

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