†Trigonia eufaulensis gabbi Stephenson 1941 (clam)
Bivalvia - Trigoniida - Trigoniidae
Belongs to Trigonia according to L. W. Stephenson 1941
Sister taxa: Trigonia (Kumatrigonia), Trigonia (Trigonia), Trigonia antiqua, Trigonia castrovillensis, Trigonia coqueiroensis, Trigonia cragini, 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