†order Opisthobranchiata Milne-Edwards 1848

Gastropoda - Opisthobranchiata

Alternative spellings: Opisthobranchia, Opisthobranchia

Parent taxon: Gastropoda according to U. S. Grant, IV and H. R. Gale 1931

See also Beesley 1998, Harzhauser 2007, Knight et al. 1960, Martin 1904, Sepkoski 2002, Squires 1989, Squires 1999 and Squires and Saul 2001

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, 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, Neomphaliones, Neptuneidae, Nerinea, Neritaemorpha, Neritimorpha, Neritites, Notodelphinula, 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: Acanthotrophia Acochlidea Akeridae Buscotypus Canepina Cephalaspida Cephalaspidea Cylindrobullinoidea Floribella Gymnosomata Heteroptygmatis Heterostrophia Lutima Mariottia Mistostigma Nicosiaella Notaspidea Paronaella Pseudofusia Reticulacella Rhodopemorpha Scorbinidola Tectibranchia Thecosomata Umbraculomorpha

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