Family Phenacolepadidae Pilsbry 1895 (snail)
Synonym: Shinkailepadidae Okutani et al. 1989
Parent taxon: Neritoidea according to J. A. Todd 2001
Sister taxa: Naticopsidae, Neritariidae, Neritidae, Pileolidae
Subtaxa: Cinnalepeta, Phenacolepas, Plesiothyreus, Shinkailepas
Ecology: epifaunal omnivore