Bivalvia - Trigoniida - Megatrigonioidae
PaleoDB taxon number: 142406
Alternative spelling: Acanthotrigonia
Parent taxon: Pterotrigonia according to M. Tashiro and T. Kozai 1982
Sister taxa: Pterotrigonia (Pterotrigonia), Pterotrigonia (Ptilotrigonia), Pterotrigonia (Scabrotrigonia), Pterotrigonia (Scabrotrigonia) eufaulensis, Pterotrigonia borgesi, Pterotrigonia crenulata, Pterotrigonia cristata, Pterotrigonia ethra, Pterotrigonia evansana, Pterotrigonia klamathonia, Pterotrigonia vaelsiensis, Pisotrigonia salebrosa, Rinetrigonia ventricosa, Notoscabrotrigonia tocaimaana
Subtaxa: Acanthotrigonia shepstonei, Pterotrigonia (Acanthotrigonia) higoensis, Pterotrigonia (Acanthotrigonia) mashikensis
Ecology: facultatively mobile infaunal suspension feeder