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Aulacoseira sp.

genus Aulacoseira G. H. K. Thwaites, 1848

• Modern species
• Habitat: Freshwater

• Classification
• kingdom Chromista, phylum Ochrophyta, class Bacillariophyceae, order Aulacoseirales, family Aulacoseiraceae

• Distribution
• Miocene-Pliocene: Nagano
• Pleistocene: Nagano, Ishikawa, Tochigi, Okayama

• Subtaxa
• A. distans
• A. granulata