Parent taxon: Polycystina according to P. Noble et al. 2017
See also De Wever et al. 2001, Kozur et al. 1996, Maletz and Bruton 2008 and Takahashi and Miyake 2014
Sister taxa: Albaillellaria, Archaeospicularia, Collodaria, Latentifistularia, Nassellaria, Protobiramus, Spumellaria
Subtaxa: Braginella Centrocubidae Cyclocarpus Ellisus Entactiniidae Eptingiidae Haplentactiniidae Helioentactinia Heptacladidae Hexalonchidae Hexastylidae Hindeosphaeridae Hollandocachoniidae Inaniguttidae Isometractiniidae Kahlerosphaera Kungalariidae Multiarcusellidae Odoghertitidae Palaeolithocycliidae Palaeoscenidiidae Paleoxiphosphaera Pentactinocarpidae Polyentactiniidae Protoentactiniacea Proventocitidae Pylentonemidae Quinquecapsulariidae Radium Rhizosphaeridae Saturnalidae Spongosaturnaloididae Tetrentactiniidae Thalassothamnidae Triumbraculidae
Ecology: passively mobile planktonic omnivore