Alternative spelling: Neomphaloidei
Parent taxon: Gastropoda according to P. Bouchet et al. 2017
See also Goedert and Benham 1999
Sister taxa: Achatina, Acteonoidea, Admetidae, Alamirifica, Alectrionidae, Amalthea, Amphigastropoda, Archaeobranchia, Architectonicidae, Auroraella, Beekmanoceras, Bellerophontida, Brachycerithium, Briardia, Bucardites, Buccinites, Bulimella, Bulimulidae, Bulimus, Bullaea, Caenogastropoda, Capulus sellardsi, Catubrina, Cavolinioidea, Chartrionella, Chippewaella, Chlathrus, Chrysodomidae, Chuchleconus, Cithna, Clathromangelia, Cocculiniformia, Cyclostoma, Deroceras, Dextrobranchia, Dicathais, Dicosmus, Doliidae, Dorcasiidae, Elmira, Eogastropoda, Eunerinea, Fruiticicoiidae, Gadinidae, Galeodea schencki, Galericulus, Geinitzia, Geinitzia carinata, Globulitopa, Gordenella, Gryphellina, Gundlachia, Hecatastoma, Helicarionoidea, Helicidae, Helicites, Helictes, Helminthoglyptidae, Holopea incola, Holyneconcha, Hyalaea, Hyalinia, Hyrcania, Isaea, Iteria, Jeffreysia, Juliidae, Liris, Lovonemetrida, Luoguella, Luoguispira, Lymnaea, Lysechinus, Lysechinus incongruens, Mahajangina, Mathildidae, Microceras, Microcochlis, Mitrularia, Monotigma, Neptuneidae, Nerinea, Neritaemorpha, Neritimorpha, Neritites, Notodelphinula, Opisthobranchia, Opisthonematidae, Orthogastropoda, Patellogastropoda, Patelloidea, Pectinibranchia, Pejona, Peraubium, Permoplanorboidea, Phorus, Pitonnellus, Planorboidea, Platyostomella, Platystoma, Plectopyloidea, Pleurotomaria verticillata, Pleurotomaria verticillata, Pleurotomaria viola, Plicatusidae, Polygyridae, Pragoserpulinidae, Prasinidae, Prosobranchia, Pseudobrochidium, Pseudotylostoma, Ptenoglossa, Pteronotus, Pteropoda, Pulmonata, Pupillacea, Pyramidellidae, Pythia, Rhytidopilidae, Rotellina, Rugoplanorboidella, Scalariidae, Serpulopsis, Spiraxidae, Spirgvaleia, Streptoneura, Stuorilda, Subulinidae, Suprazonalia, Taeniodomus, Thatcheriidae, Tirolthilda, Tornatella, Tortifusus, Toxonema, Tripartella, Trochifusus, Trochiletes, Trochopsis, Trochotremaria, Trochulus, Turbo guadalupensis, Turbo texana, Urocoptidae, Valvata, Vespertilio, Vetigastropoda, Wellingtonia, Zlichovia
Subtaxa: Cocculinida Neomphalida
Ecology: epifaunal