†family Terquemiidae Cox 1964 (clam)
Parent taxon: Pectinacea according to H. E. Vokes 1980
Sister taxa: Entolioididae, Neitheoidae, Pectinoidae, Deltopectenidae, Dreisseniidae, Amusiidae
Subtaxa: Newaagia
Ecology: stationary epifaunal suspension feeder