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| Kingdom | Chromista
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| Subkingdom | Harosa
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| Infrakingdom | Halvaria
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| Superdivision | Heterokonta
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| Division | Ochrophyta
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| Class | Bacillariophyceae Haeckel
– diatoms, diatomées |
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| Subclass | Bacillariophycidae Mann
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| Order | Lyrellales Mann
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| Family | Lyrellaceae Mann
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| Genus | Petroneis Stickle and Mann in Round, Crawford and Mann |
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Direct Children: |
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| Species | Petroneis glacialis (Cleve) Witkowski, Lange-Bertalot and Metzeltin
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| Species | Petroneis granulata (Bailey) D.G. Mann in Round, R.M. Crawford and D.G. Mann
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| Species | Petroneis humerosa (Brébisson ex W. Smith) Stickle and D.G. Mann in Round, R.M. Crawford and D.G. Mann
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| Species | Petroneis marina (Ralfs in Pritchard) D.G. Mann in Round, R.M. Crawford and D.G. Mann
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| Species | Petroneis punctigera (Hustedt) D.G. Mann in Round, R.M. Crawford and D.G. Mann
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