Bivalvia - Cyrtodontida - Praecardiidae
Synonyms: Neklaniidae Scarlato and Starobogatov 1979, Pararcidae Ulrich 1894
Parent taxon: Praecardioidea according to J. Kříž 2007
See also Bouchet et al. 2010, Nevesskaja 2009, Newell 1965 and Vokes 1980
Sister taxa: Buchiolidae, Palaeocardiidae
Subtaxa: Cardiolinae Dexiobiinae Fentounia Kralovna Manulicula Mucopraeca Neklania Praecardiinae Praecardium Pseudocostatoria Telycardia Tewoella Vetupraeca
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Carboniferous of United States (5: Iowa, Missouri collections)
• Devonian of Brazil (1), Canada (1: Nunavut), China (2), Czechia (10), Germany (8), Morocco (2), United States (21: Maryland, Nevada, New York, Ohio)
• Jaani of Estonia (1)
• Silurian to Devonian of Italy (1)
• Silurian of Austria (1), China (4), Czechia (13), Italy (2), Morocco (1), Poland (2), Spain (1)
• Ordovician of Czechia (1)
Total: 77 collections including 93 occurrences