†Tugonia (Distugonia) Iredale 1936 (softshell clam)
Parent taxon: Tugonia according to H. E. Vokes 1980
Sister taxa: Tugonia (Antiguamya), Tugonia (Tugoniopsis)
Subtaxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution: there are no occurrences of Tugonia (Distugonia) in the database