†family Kijidae Kolesnikov 1977 (clam)
Parent taxon: Sphaerioidea according to P. Bouchet et al. 2010
Sister taxa: Sibireconchidae, Sphaeriidae
Subtaxa: Dayeconcha Kija
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at Jinshandian, Daye (Wuchang Formation) (Jurassic of China)