Bivalvia - Trigoniida - Trigoniidae
Alternative spelling: Apiotrigonia
Full reference: L. R. Cox. 1952. Notes on the Trigoniidae, with outlines of a classification of the family. Proceedings of the Malacological Society of London 29:45-70
Parent taxon: Megatrigonia according to L. R. Cox 1952
See also Bouchet et al. 2010, Hayami 1975, Jones 1960, Sepkoski 2002 and Tashiro and Kozai 1982
Sister taxa: Megatrigonia (Iotrigonia), Megatrigonia arsinoe, Megatrigonia carrincurensis, Megatrigonia conocardiiformis, Megatrigonia discors, Megatrigonia eximia, Megatrigonia obesa, Megatrigonia picunensis, Megatrigonia pusilla, Megatrigonia staffi
Subtaxa: Apiotrigonia (Apiotrigonia) Apiotrigonia buchi Apiotrigonia calderoni Apiotrigonia chivensis Apiotrigonia disparilis Apiotrigonia heterosculpta Apiotrigonia maudensis Apiotrigonia newcombei Apiotrigonia pennata Apiotrigonia progonos Apiotrigonia robinaldina Apiotrigonia subovalis Apiotrigonia syrdariensis Apiotrigonia turcmenensis Megatrigonia (Apiotrigonia) condoni Megatrigonia (Apiotrigonia) sulcataria
Type: Trigonia sulcataria
Distribution:
• Cretaceous of Chile (1 collection), Japan (36), the Russian Federation (2), United States (10: California, Oregon)
Total: 49 collections including 59 occurrences