Bivalvia - Trigoniida - Trigoniidae
Parent taxon: Trigonia according to C. A. Fleming 1987
See also Sepkoski 2002
Sister taxa: Trigonia (Clavitrigonia), Trigonia (Indotrigonia), Trigonia (Kumatrigonia), Trigonia (Pleurotrigonia), Trigonia (Primatrigonia), Trigonia (Prosogyrotrigonia), Trigonia (Protrigonia), Trigonia (Trigonia), Trigonia aequicostata, Trigonia analoga, Trigonia angulicosta, Trigonia antiqua, Trigonia azzarolae, Trigonia bowersiana, Trigonia carinata, Trigonia castani, Trigonia charlottensis, Trigonia columbiana, Trigonia coqueiroensis, Trigonia depauperata, Trigonia devexa, Trigonia doroschini, Trigonia eufalensis, Trigonia gibboniana, Trigonia hemisphaerica, Trigonia imbricata, Trigonia intersitans, Trigonia kayana, Trigonia kefersteini, Trigonia literata, Trigonia maastrichtiana, Trigonia maloneana, Trigonia marginata, Trigonia melhasei, Trigonia montanaensis, Trigonia mooreana, Trigonia nodulosa, Trigonia obliqua, Trigonia oregona, Trigonia orientalis, Trigonia oviedensis, Trigonia pandicosta, Trigonia papuana, Trigonia picteti, Trigonia plana, Trigonia plumasensis, Trigonia pseudocrenulata, Trigonia pullus, Trigonia rebouli, Trigonia reesidei, Trigonia reticulata, Trigonia somaliensis, Trigonia sulcata, Trigonia tabacoensis, Trigonia thierachensis, Trigonia undulata, Trigonia undulatocostata, Trigonia wilckensi
Subtaxa: none
Ecology: fast-moving shallow infaunal suspension feeder
Distribution: there are no occurrences of Trigonia (Heslingtonia) in the database