†subclass Palaeoheterodonta Newell 1965 (clam)
Alternative spelling: Paleoheterodonta
Full reference: N. D. Newell. 1965. Classification of the Bivalvia. American Museum Novitates 2206:1-25
Parent taxon: Heteroconchia according to R. Bieler and P. M. Mikkelsen 2006
See also Bouchet et al. 2010, Cope 1997, Giribet and Wheeler 2002, Newell 1965, Shoshani et al. 1989 and Vokes 1980
Sister taxa: Archiheterodonta, Cardiomorphi, Eoastartella, Heterodonta, Heterodonta, Lipanellidae, Parenia, Paullia, Uniomorphi
Subtaxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at Cerro Blanco (YAN-2031) (Cretaceous of Argentina)