[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Protostomia Grobben, 1908 see Infrakingdom Protostomia Grobben, 1908
           Section Pseudocoelomata
             Phylum Acanthocephala Kohlreuther, 1771 - acanthocephalans see [unranked] Acanthocephala Kohlreuther, 1771
               1 Order Archiacanthocephala Meyer, 1931 see Class Archiacanthocephala (A. Meyer, 1931)
               2 Order Palaeacanthocephala Meyer, 1931 see Class Palaeacanthocephala (Meyer, 1931)
               3 Order Eocanthocephala see Class Eoacanthocephala Van Cleave, 1936