†subfamily Megatrigoniinae van Hoepen 1929 (clam)
Bivalvia - Trigoniida - Megatrigonioidae
Parent taxon: Megatrigoniidae according to J. G. Carter et al. 2011
See also Bouchet et al. 2010
Sister taxa: Pterotrigoniinae, Anditrigonia
Subtaxa: Apiotrigoniini Megatrigoniini
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Megatrigoniinae in the database