Order Cardiida Ferussac 1822 (clam)
Parent taxon: Imparidentia according to S. Lemer et al. 2019
See also Carter et al. 2011
Sister taxa: Adapedonta, Galeommatida, Gastrochaenida, Lucinida, Neoheterodontei
Subtaxa: Anthracosiidina Cardiidina Cardioidea Gastrochaenidina Kalenteroidea Leptonidina Tellinoidea
Ecology: facultatively mobile infaunal suspension feeder