From Suzuki Paleotax db:
1993 Cryptogyrus trachylobus n. sp. Sugiyama p. 65, 67-68, fig. 19.1a-19.5, 20.1a-20.2b
Catalog entries: Cryptogyrus trachylobus
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Geological Range:
Last occurrence (top): within Miocene Epoch (5.33-23.03Ma, top in Messinian stage). Data source:
First occurrence (base): within Miocene Epoch (5.33-23.03Ma, base in Aquitanian stage). Data source:
Plot of occurrence data:
Sugiyama, K. (1993). Skeletal structures of Lower and Middle Miocene Lophophaenids (Radiolaria) from central Japan. Transactions and Proceedings of the Palaeontological Society of Japan. 169: 44-72. gs References:

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Cryptogyrus trachylobus compiled by the radiolaria@mikrotax project team viewed: 20-8-2026
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