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Coscinodiscus sp.

genus Coscinodiscus Ehrenberg, 1839

• Modern species: Late Cretaceous - Present (70.6 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Chromista, phylum Ochrophyta, class Bacillariophyceae, order Coscinodiscales, family Coscinodiscaceae

• Distribution
• Miocene: Ishikawa, Tochigi
• Pliocene-Pleistocene: Hokkaido
• Quaternary: Chiba

• Subtaxa
• C. excentricus
• C. lacustris
• C. lineatus
• C. marginatus
• C. robustus f. robustus