Family Pinnidae Leach 1819 (clam)
Parent taxon: Pinnoidea according to J. G. Carter et al. 2011
Sister taxa: none
Subtaxa: Atrina, Aviculopinna, Chimaeroderma, Curvula, Cyrtopinna, Exitopinna, Meekopinna, Pinna, Plesiopinna, Pteronites, Quantulopinna, Servatrina, Stegoconcha, Streptopinna, Subitopinna, Trichites
Ecology: stationary semi-infaunal suspension feeder