Phylum Brachiopoda Duméril, 1806 - brachiopods
   Subphylum Rhynchonelliformea Williams et al., 1996
     Class Rhynchonellata Williams et al., 1996
       Order Terebratulida Waagen, 1883
         Suborder Terebratellidina Muir-Wood, 1955
           Superfamily Kingenoidea Elliott, 1948
             1 Family Kingenidae Elliott, 1948
             2 Family Aulacothyropsidae Dagys, 1972