Phylum Brachiopoda Duméril, 1806 - brachiopods
   Subphylum Craniiformea Popov, Bassett, Holmer & Laurie, 1993
     Class Craniata Williams, Carlson, Brunton, Holmer & Popov, 1996
       Order †Trimerellida
         Superfamily †Trimerelloidea Davidson & King, 1872
           1 Family †Trimerellidae Davidson & King, 1872
           2 Family †Adensuidae Popov & Rukavishnikova, 1986
           3 Family †Ussuniidae Nikitin & Popov, 1984