Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class Rhynchonellata Williams et al., 1996 Order †Atrypida Rzhonsnitskaya, 1960 Suborder †Atrypidina Moore, 1952 Superfamily †Atrypoidea Gill, 1871 1 Family †Atrypidae Gill, 1871 2 Family †Atrypinidae McEwan, 1939