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†class Chrysophyceae (heterokonts)

PaleoDB taxon number: 69590

Parent taxon: Heterokontophyta according to W. Kiessling 2004

Sister taxa: Dictyochophyceae, Phaeophyceae, Xanthophyceae

Subtaxa: Phytomastigophora

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Ecology: passively mobile planktonic "photoautotroph"