Bivalvia - Cardiida - Cardiidae
Parent taxon: Protocardia according to J. A. Schneider 1995
See also Gahr 2002
Sister taxa: Cardium (Protocardia) arkansense, Cardium (Protocardia) pauli, Cardium (Protocardium) granuliferum, Protocardia (Grypocardia), Protocardia (Leptocardia), Protocardia (Pachycardium), Protocardia (Tamilicardia), Protocardia alcesiana, Protocardia buckmani, Protocardia costaricensis, Protocardia dufrenoyca, Protocardia eduliformis, Protocardia gambrina, Protocardia hillana, Protocardia intexta, Protocardia lingulata, Protocardia luggudensis, Protocardia newberryana, Protocardia peregrinorsa, Protocardia pesolina, Protocardia philippiana, Protocardia piettei, Protocardia placerensis, Protocardia pulchella, Protocardia qinghaiensis, Protocardia razavii, Protocardia rhaetica, Protocardia salrivalis, Protocardia somaliensis, Protocardia stantoni, Protocardia stonei, Protocardia striatula, Protocardia stricklandi, Protocardia subquadrata, Protocardia texanum, Protocardia translucida, Protocardia truncata, Protocardia umkwelanensis, Protocardia virginiana, Protocardium (Brevicardium)
Subtaxa: Protocardia (Protocardia) alta Protocardia (Protocardia) philippiana Protocardia (Protocardia) striatulum
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Miocene of Cyprus (1 collection)
• Cretaceous of the Congo-Brazzaville (2), Egypt (1), India (1), Italy (1), Japan (9)
• Jurassic to Cretaceous of Japan (1)
• Jurassic of China (1), India (36), Iran (3), Japan (7), Jordan (2), Portugal (3), Serbia and Montenegro (2), Spain (2), the United Kingdom (1)
Total: 73 collections including 87 occurrences