Radiolaria - Polycystina

Alternative spelling: Polycystida

Parent taxon: Radiolaria according to P. De Wever et al. 2001

Sister taxa: Amphicraspedum, Copiconica, Durahelenifore, Grosmorneus, Gyrosphaera, Labyrinthosphaera, Pentinastrum, Pheodaria, Rotasphaeracea, Spongosphaera, Stylotrochus, Triactiscus, Veles

Subtaxa: Aitchisonellum, Albaillellaria, Archaeospicularia, Collodaria, Entactinaria, Latentifistularia, Nassellaria, Protobiramus, Spongomassa, Spumellaria

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Ecology: passively mobile planktonic omnivore