Alternative spelling: Chilostomata
Parent taxon: Gymnolaemata according to R. S. Boardman et al. 1983
See also Bassler 1953, Brown 1952, Brown 1956, Brown 1958, Canu and Bassler 1935, Gordon and Taylor 1999, Gordon and Taylor 2015, Guha and Gipikrishna 2007, Guha and Gopikrishna 2007, López-Gappa and Pérez 2019, Parker 1982, Schmidt 2003, Sepkoski 2002, Ulrich and Bassler 1904, Viera et al. 2016 and Zagorsek et al. 2010
Sister taxa: Cheilostomatida, Ctenostomata
Subtaxa: Atacama Biavicularium Buffonella Craspedoporina Diplobeisselina Diplorula Exochellidae Flustrella Flustrina Gemelliporellidae Haplopomella Hemeschara Hopora Hormerella Inovicellina Lepraliidae Malacostegina Marquetta Membraniporina Neocheilostomina Paravinella Parobeisselina Pavolunuites Petaloconchus Porometra Quadricellariidae Revssirella Rhabdotometra Schizotrema Scorioporidae Scrupariina Stenopsis Stichtostega Sylonika Thalamoporellina Thecatia Tricornicella Uniavicularia Vinculariidae
Ecology: stationary epifaunal suspension feeder