[Phylum] Chordata Bateson, 1885 - chordates
Subphylum Craniata auct.
Infraphylum Vertebrata Lamarck, 1801 - vertebrates
Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
Class †Placodermi McCoy, 1848
Order †Acanthothoraci Stensiö, 1944
Family †Hagiangellidae Dupret, Phuong, Thanh, Phong, Janvier & Clément, 2011
Genus †Hagiangella Janvier, 2005