Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class Rhynchonellata Williams et al., 1996 Order †Pentamerida Schuchert & Cooper, 1931 Suborder †Pentameridina Schuchert & Cooper, 1931 Superfamily †Gypiduloidea Schuchert & LeVene, 1929 1 Family †Gypidulidae Schuchert & Le Vene, 1929 2 Family †Enantiosphenidae Torley, 1934