John D. Taylor, Emily A. Glover, Suzanne T. Williams. 2009. Phylogenetic position of the bivalve family Cyrenoididae — removal from (and further dismantling of) the superfamily Lucinoidea. The Nautilus 123(1):9-13.

Abstract:
A molecular analysis using sequences from 18S and 28S rRNA genes of the brackish and freshwater bivalve Cyrenoida floridana, in conjunction with a wide range of other heterodont bivalves, demonstrated a close relationship with the families Corbiculidae and Glauconomidae and distant from the Luci noidea, where the Cyrenoididae had been usually classified. Based on this result it is proposed that the Cyrenoididae be removed from the Lucinoidea, which, for living taxa, now includes only the family Lucinidae.