Kingdom Animalia Linnaeus, 1758 - animals
Status: extant
   Phylum Echiura Sedgwick, 1898 - spoon worms, echiurans see Class Echiura
  Status: extant
     1 Order Echiuroinea
    Status: extant
     2 Order Xenopnuesta
    Status: extant
     3 Order Heteromyota
    Status: extant