Gyrista

Gyrista
	Gyristan representatives (clockwise from top-left): water mould, brown algae, diatoms, Develorapax.
Scientific classification
Domain:	Eukaryota
Clade:	Diaphoretickes
Clade:	TSAR
Clade:	SAR
Clade:	Stramenopiles
Phylum:	Gyrista; Cavalier-Smith 1998
Classes
	Bigyromonada Developea; Pirsonea; ; Pseudofungi Oomycetes; Hyphochytrea; ; Ochrophytina ?Olisthodiscophyceae; Chrysista Limnistia Chrysophyceae; Eustigmatophyceae; Synchromophyceae; ; Raphidoistia Raphidomonadea; ; Fucistia Aurophyceae; Chrysomerophyceae; Chrysoparadoxophyceae; Phaeosacciophyceae; Phaeophyceae; Schizocladiophyceae; Xanthophyceae; ; ; Diatomista Hypogyrista Dictyochophyceae; Pinguiophyceae; ; Khakista Bolidophyceae; Bacillariophyceae (diatoms); ; ; ;

Gyrista is a phylum of heterokont protists containing three diverse groups: the mostly photosynthetic Ochrophyta, the parasitic Pseudofungi, and the recently described group of nanoflagellates known as Bigyromonada. Members of this phylum are characterized by the presence of a helix or a double helix/ring system in the ciliary transition region.

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