Bivalvia - Trigoniida - Trigoniidae
Parent taxon: Trigoniinae according to E. Perez et al. 2008
Sister taxa: Guineana, Pacitrigonia
Subtaxa: Trigonia (Kumatrigonia), Trigonia (Trigonia), Trigonia antiqua, Trigonia castrovillensis, Trigonia coqueiroensis, Trigonia cragini, Trigonia eufaulensis gabbi, Trigonia eufaulensis moorei, Trigonia guildi, Trigonia hemisphaerica, Trigonia intersitans, Trigonia kitchini, Trigonia maloneana, Trigonia marginata, Trigonia mearnsi, Trigonia pullus, Trigonia reesidei, Trigonia resoluta, Trigonia reticulata, Trigonia saavedra, Trigonia somaliensis, Trigonia stantoni, Trigonia stolleyi, Trigonia sulcata, Trigonia taffi, Trigonia thierachensis, Trigonia vyschetzkii, Trigonia weaveri, Trigonia zlambachensis
Ecology: facultatively mobile infaunal suspension feeder