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Navicula sp.

genus Navicula J. B. M. Bory de Saint-Vincent, 1822

• Modern species: Miocene - Present (13.6 - 0.0 Ma)
• Habitat: Marine, Brackish, Freshwater

• Classification
• kingdom Chromista, phylum Ochrophyta, class Bacillariophyceae, order Naviculales, family Naviculaceae

• Distribution
• Miocene-Pliocene: Nagano
• Pliocene-Pleistocene: Saitama
• Quaternary: Chiba
• Pleistocene: Niigata, Nagano, Ishikawa, Gunma, Tochigi, Tokyo

• Subtaxa
• N. bacillum
• N. jentzschii
• N. radiosa
• N. scutelloides
• N. smithii f. smithii
• N. turgida
• N. tuscula
• N. zebra