†subfamily Cardiolinae Fischer 1886 (clam)
Bivalvia - Cyrtodontida - Praecardiidae
Parent taxon: Praecardiidae according to H. E. Vokes 1980
Sister taxa: Buchiola, Dexiobiinae, Fentounia, Kralovna, Manulicula, Mucopraeca, Praecardiinae, Praecardium, Pseudocostatoria, Telycardia, Tewoella, Vetupraeca, Neklania
Subtaxa: Euthydesma Opisthocoelus
Ecology: facultatively mobile epifaunal suspension feeder
Distribution: