†unranked clade Megatrigonioidae van Hoepen 1929 (clam)

Bivalvia - Trigoniida - Megatrigonioidae

Parent taxon: Myophorelloidea according to J. G. Carter et al. 2011

Sister taxa: Frenguelliellidae, Myophorelloidae, Steinmanellidae

Subtaxa: Megatrigoniitae Rutitrigoniitae

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Ecology: facultatively mobile infaunal suspension feeder

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