Phylum Brachiopoda Duméril, 1806 - brachiopods
Status: extant
   Subphylum Rhynchonelliformea Williams et al., 1996
  Status: extant
     Class Rhynchonellata Williams et al., 1996
    Status: extant
       Order Terebratulida Waagen, 1883
      Status: extant
         Suborder Terebratulidina Waagen, 1883
        Status: extant
           1 Superfamily †Stringocephaloidea King, 1850
          Status: fossil
           2 Superfamily †Cryptonelloidea Thomson, 1926
          Status: fossil
           3 Superfamily †Dielasmatoidea Schuchert, 1913
          Status: fossil
           4 Superfamily Terebratuloidea Gray, 1840
          Status: extant
           5 Superfamily †Loboidothyridoidea Makridin, 1964
          Status: fossil
           6 Superfamily Dyscolioidea Fischer & Oehlert, 1891
          Status: extant
           7 Superfamily Cancellothyridoidea Thomson, 1926
          Status: extant