†order Modiomorphida Newell 1969
Alternative spelling: Modiomorphoida
Parent taxon: Cardiiformii according to J. G. Carter et al. 2011
See also Cope 1996, Scholz et al. 2008, Sepkoski 2002 and Vokes 1980
Sister taxa: Cardiida, Hippuritida, Megalodontida
Subtaxa: Brahcylyrodesma Cycloconchacea Junjagiana Modiomorphoidea Rimmyjmima