Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class Rhynchonellata Williams et al., 1996 Order †Spiriferida Waagen, 1883 Suborder †Spiriferidina Waagen, 1883 Superfamily †Theodossioidea Ivanova, 1959 Family †Theodossiidae Ivanova, 1959