Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class Rhynchonellata Williams et al., 1996 Order Rhynchonellida Kuhn, 1949 Superfamily †Lambdarinoidea Brunton & Champion, 1974 1 Family †Lambdarinidae Brunton & Champion, 1974