Bivalvia - Hippuritida - Plagioptychidae
Parent taxon: Radiolitoidea according to P. W. Skelton 2013
See also Bouchet et al. 2010, Carter et al. 2011, Nevesskaja 2009 and Steuber 1999
Sister taxa: Caprinulidae, Caprotinidae, Diceratidae, Hippuritidae, Monopleuridae, Polyconitidae, Radiolitidae, Rousselia, Trechmannellidae
Subtaxa: Coralliochama Mitrocaprina Paracaprinula Plagioptychus
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution:
• Cretaceous of Algeria (1 collection), Austria (16), Bulgaria (1), Costa Rica (3), Croatia (3), Cuba (2), Czechia (3), France (4), Greece (6), Hungary (1), Italy (26), Jamaica (20), Jordan (1), the Marshall Islands (1), Mexico (18), North Atlantic (2), Oman (1), Romania (1), Serbia (4), Spain (22), Türkiye (3), United States (5: California)
Total: 144 collections including 182 occurrences