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Amphipleuraceae
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Amphora
Amphora pediculus
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Amphora thumensis
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Bacillariophyceae
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Canada
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Catenulaceae
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Chromista
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Cymbella
Cymbella proxima
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Cymbellaceae
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Cymbellales
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Halamphora
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Naviculales
North America
Ochrophyta
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Rocky Mountains
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Thalassiophysales
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biogeography
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diatoms
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ecology
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taiga
tundra
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