†subfamily Zaptychiinae Wenz 1938 (snail)
Gastropoda - Heterostropha - Ellobiidae
Parent taxon: Ellobiidae according to P. Bouchet et al. 2017
See also Bouchet et al. 2005
Sister taxa: Cassidula, Ellobiinae, Ellobium, Melampinae, Melampus, Ophicardelus, Ovatella, Pedipedinae, Pedipes, Proplecotrema, Pythiinae, Tralia
Subtaxa: Zaptychius
Ecology: epifaunal grazer
Distribution: found only at SK-1 (North) borehole, Songliao Basin, 332 m depth (Paleocene of China)