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Cyclotella sp.

genus Cyclotella (F. T. Kützing) A. de Brébisson, 1838

• Modern species: middle Miocene - Present (13.7 - 0.0 Ma)
• Habitat: Marine, Freshwater

• Classification
• kingdom Chromista, phylum Ochrophyta, class Bacillariophyceae, order Thalassiosirales, family Stephanodiscaceae

• Distribution
• Miocene-Pliocene: Tottori
• Quaternary: Chiba
• Pleistocene: Ishikawa, Tochigi, Okayama
• Investigation in progress: Nagano

• Subtaxa
• C. comta
• C. ocellata
• C. stylorum