Phylum †Proarticulata Fedonkin, 1985
Count: -
   1 Class †Vendiamorpha Fedonkin, 1985
  Count: -
   2 Class †Dipleurozoa Harrington & Moore, 1956 [monotypic]
  Count: [†*] †1g [14 Dec 2020]
   3 Class †Cephalozoa Ivantsov, 2004
  Count: -