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Stephanodiscus astraea
Stephanodiscus astraea (Ehrenberg) Grunow, 1880
Modern species
Habitat: Marine, Freshwater
Classification
kingdom Chromista, phylum Ochrophyta,
class Bacillariophyceae
, order Thalassiosirales, family Stephanodiscaceae,
genus Stephanodiscus
Distribution
Pleistocene:
Tochigi