†family Prosogyrotrigoniidae Kobayashi 1954 (clam)
Bivalvia - Trigoniida - Prosogyrotrigoniidae
Parent taxon: Trigonioidea according to J. G. Carter et al. 2011
See also Bouchet et al. 2010, PĂ©rez et al. 2008 and Scholz et al. 2008
Sister taxa: none
Subtaxa: Praegoniinae Prosogyrotrigoniinae
Ecology: facultatively mobile infaunal suspension feeder
Distribution: