Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class Rhynchonellata Williams et al., 1996 Order †Atrypida Rzhonsnitskaya, 1960 Suborder †Lissatrypidina Copper, 1996 Superfamily †Protozygoidea Copper, 1986 1 Family †Protozygidae Copper, 1986 2 Family †Cyclospiridae Schuchert, 1913