Bivalvia - Lucinida - Mactromyidae
Synonym: Unicardiidae Fischer 1887 [replaced name]
Parent taxon: Lucinoidea according to J. G. Carter et al. 2011
See also Bouchet et al. 2010, Nevesskaja 2009, Newell 1965, Parker 1982 and Vokes 1980
Sister taxa: Lucinidae, Paracyclidae
Subtaxa: Bathycorbis Clisocolus Cordiula Eolucina Linetia Mactromya Mactromyopsis Montanaria Sexta Thetironia Thetis Unicardium
Ecology: facultatively mobile infaunal chemosymbiotic
Distribution:
• Eocene of India (1 collection)
• Paleocene of Denmark (1), the Russian Federation (1)
• Cretaceous of Australia (1), Denmark (1), Egypt (3), France (4), Hungary (1), India (1), Italy (1), Jamaica (2), Japan (10), Mexico (1), North Atlantic (1), the Russian Federation (3), Serbia (2), South Africa (1), South Georgia and the South Sandwich Islands (1), Spain (1), Switzerland (7), the United Kingdom (24), United States (118: Alabama, Arizona, California, Delaware, Georgia, Mississippi, Missouri, New Jersey, North Carolina, South Carolina, Tennessee, Texas, Utah, Washington)
• Jurassic of Bulgaria (1), Chile (5), China (1), Denmark (6), Eritrea (3), Ethiopia (10), France (7), Germany (7), Greenland (36), India (26), Iran (1), Jordan (8), Kenya (13), Madagascar (4), New Zealand (1), Poland (2), Portugal (15), Saudi Arabia (32), Serbia (2), Somalia (9), Spain (67), Svalbard and Jan Mayen (4), Tanzania (5), Tunisia (24), the United Kingdom (35), United States (9: Utah, Wyoming), Yemen (3)
• Triassic of Canada (1: British Columbia), Germany (9), Peru (1), Poland (1), Romania (1), United States (2: Utah)
• Devonian of Czechia (1), Luxembourg (1)
Total: 539 collections including 579 occurrences