Kingdom Animalia Linnaeus, 1758 - animals
Status: extant
   Phylum Pogonophora Johansson, 1937 - beard worms see Family Siboglinidae Caullery, 1914
  Status: extant
     1 Order Athecanephria A.V. Ivanov, 1955 see Family Siboglinidae Caullery, 1914
    Status: extant
     2 Order Thecanephria A.V. Ivanov, 1955 see Family Siboglinidae Caullery, 1914
    Status: extant