Alternative spelling: Nassellariina
Parent taxon: Polycystina according to O. Takahashi and Y. Miyake 2014
See also Boltovskoy 1999, De Wever et al. 2001, Feng et al. 2004, Martin 1904, Sepkoski 2002 and Sharma and Takahashi 2007
Sister taxa: Albaillellaria, Archaeospicularia, Collodaria, Entactinaria, Latentifistularia, Protobiramus, Spumellaria
Subtaxa: Abnormisphaera Acanthodesmiacea Acerahedrina Acerocanium Acidnomelos Acotripus Acropyramididae Adelocyrtis Afens Amphipyndacea Anisicyrtiidae Anthocyrtoma Archaeodictyomitracea Archaeosemantidae Archeeucyrtis Archicorys Archocyrtiidae Ares Artoperina Artostrobium Ayrtonius Barbutidae Bathrocalpis Belleza Botryocella Calyptocoryphe Canelonus Canesium Carterwhalenia Cephalopyramis Cladospyris Clathrospyris Collicyrtidium Conarchnium Confiroma Corocalyptra Cortiniscus Crubidae Cryptocapsa Cryptocephalus Cryptopora Cuniculiformiidae Cyrtocalpis Cyrtoidea Deflandrecyrtiidae Dendrocircus Diacanthocapsidae Dictyospyris Dipodospyris Distylocapsa Eucyrtidiacea Eucyrtidiellidae Eucyrtis Ewingella Farcidae Favosyringium Foremanellinidae Foremania Globolaxtorum Glycobtrys Haliphormis Heloringulum Hexapylocapsidae Hilarisiregidae Homeoarchicorys Hsuuidae Japonocampe Kassina Krempelinella Kuppelella Laxuscingula Lithobotrys Lithocampana Lithocarpium Lithomitra Lithornithium Livarellidae Lophoconus Lophocorys Lophophaenidae Lychnodictyum Minutusolla Monosera Morosyringium Mostlericyrtium Muellericyrtiidae Nabolellidae Nabollellidae Nebespecha Neosciadiocapsidae Octotympanum Perseus Phaenocalpis Phaenoscenium Phormocampe Plagiacanthidae Plagionium Plagoniidae Platycryphalus Plectopyramis Podocoronis Popofskyellidae Poulpidae Pseudosaturniformidae Quarkus Quasipetosus Religa Ruesticyrtiidae Salpingocapsa Sanfilippoellidae Schadelfussdlerus Senelella Sethocapsidae Sethocyrtis Sethodiscus Sethoperidae Sethopilium Siphocampium Solidea Sphaerospyris Spinomersinellidae Spirocampe Spongomelissa Spyrida Stampfliellidae Stephaniscus Stichocampe Stichocapsidae Stichophormis Stylocryptocapsa Syringium Telacapsulidae Tertoniidae Tetraphormis Tetrarrhabda Tetraspinocyrtiidae Theocapsa Theophormis Trexus Triacartus Triassocampidae Triassocyrtium Tricolocampe Tricolocapsa Tripedurnulidae Tripilidium Tripocalpis Tripocyrtis Tripodiscium Tripodonium Tripodospyris Tripophaenoscenium Trissopilium Ultranaporidae Urocyrtis Williriedellidae Windalia Xipha Xiphothecaellidae
Ecology: passively mobile planktonic omnivore