Phylum Brachiopoda Duméril, 1806 - brachiopods
   Subphylum Rhynchonelliformea Williams et al., 1996
     Class Rhynchonellata Williams et al., 1996
       Order †Pentamerida Schuchert & Cooper, 1931
         Suborder †Syntrophiidina Ulrich & Cooper, 1936
           1 Superfamily †Porambonitoidea Davidson, 1853
           2 Superfamily †Camerelloidea Hall & Clarke, 1894