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†subclass Opisthobranchia Milne-Edwards 1848 (snail)

Gastropoda

PaleoDB taxon number: 11890

Alternative spelling: Opisthobranchiata

Parent taxon: Gastropoda according to J. B. Knight et al. 1960

Sister taxa: Admetidae, Amphigastropoda, Archaeobranchia, Auroraella, Beekmanoceras, Bicuerda, Brachycerithium, Briardia, Bucardites, Bulimella, Bulimulidae, Bulimus, Cavolinioidea, Chartrionella, Chippewaella, Chlathrus, Chuchleconus, Cithna, Conotrochus, Cyclostoma, Cyclostremella, Dextrobranchia, Dicathais, Dicosmus, Elmira, Eogastropoda, Euthyneura, Galericulus, Globulitopa, Hecatastoma, Helicarionoidea, Helicites, Helictes, Heterobranchia, Heterostropha, Holyneconcha, Hyalaea, Hypsogastropoda, Isaea, Iteria, Liris, Lovonemetrida, Luoguella, Luoguispira, Lysechinus, Lysechinus incongruens, Mahajangina, Microcochlis, Mitrularia, Neptuneidae, Neritaemorpha, Neritimorpha, Notodelphinula, Opisthonematidae, Orthogastropoda, Oxychilus, Pectinibranchia, Peraubium, Phorus, Pitonnellus, Platyostomella, Platystoma, Plectopyloidea, Plicatusidae, Polygyridae, Pragoserpulinidae, Prosobranchia, Pseudobrochidium, Pseudotylostoma, Pteronotus, Pulmonata, Pupillacea, Raphistomatidae, Rhytidopilidae, Rotellina, Sorbeoconcha, Spiraxidae, Spirgvaleia, Streptoneura, Stuorilda, Suprazonalia, Taeniodomus, Thatcheriidae, Tirolthilda, Tornatella, Tortifusus, Toxonema, Tripartella, Trochiletes, Trochopsis, Trochotremaria, Trochulus, Zeminolia, Zlichovia

Subtaxa: Acanthotrophia, Acochlidea, Anaspidea, Buscotypus, Canepina, Cephalaspida, Cephalaspidea, Cylindrobullinoidea, Floribella, Gymnosomata, Heteroptygmatis, Heterostrophia, Lutima, Mariottia, Mistostigma, Nicosiaella, Notaspidea, Nudibranchia, Pseudofusia, Reticulacella, Rhodopemorpha, Sacoglossa, Scorbinidola, Tectibranchiata, Thecosomata, Umbraculomorpha

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Ecology: epifaunal