†unranked clade Cyrtodontidina Scarlato and Starobogatov 1971 (clam)
Parent taxon: Cyrtodontida according to J. G. Carter et al. 2011
Sister taxa: Aegilops, Praecardiidina
Subtaxa: Cyrtodontoidea Falcatodontoidea Pichlerioidea
Ecology: facultatively mobile epifaunal suspension feeder