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r = Reworked: rare occurence of a taxon noted and interpreted as reworked; fr = Fragment: rare fragment(s) of the taxon present; X = Present: complete specimens rare (=< 1...
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Eocene diatom and silicoflagellate complexes from deposits of the Kronotsky Bay are presented. Pro tempore they are the most ancient finds of fossil phytoplankton with silica...
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Studies of diatoms from dredge samples collected on the island slope of the Kuril-Kamchatka Trench have allowed to recognize well-preserved marine diatom assemblages...