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

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Ecology: facultatively mobile infaunal suspension feeder