Gastropoda - Littorinimorpha

Synonym: Calyptraeacea Lamarck 1809 [objective synonym]

Parent taxon: Littorinimorpha according to P. Jeffery 2003

Sister taxa: Capuloidea, Carinarioidea, Cingulopsoidea, Cypraeoidea, Ficoidea, Laubierinoideae, Littorinoidea, Naticoidea, Pterotracheoidea, Rissooidea, Stromboidea, Tonnoidea, Vanikoroidea, Velutinoidea, Vermetoidea, Xenophoroidea

Subtaxa: Calyptraeidae

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Ecology: facultatively mobile epifaunal suspension feeder