Modiomorphida

Modiomorphida is an extinct order of fossil saltwater clams, marine bivalve molluscs.

== Genera == †Ananterodonta †Brahcylyrodesma †Carminodonta †Celtoconcha †Cycloconchacea †Dulcineaia †Eurymya †Fortowensia †Goniophora †Junjagiana †Modiomorphoidea †Moridunia †Neofordilla †Plicatomorpha †Rimmyjmima †Saffordia †Tromelinodonta †Whiteavesia