[Phylum] Chordata Bateson, 1885 - chordates Subphylum Craniata auct. Infraphylum Vertebrata Lamarck, 1801 - vertebrates Superclass †Anaspidomorphi Class †Anaspida Traquair 1 Order †Endeiolepidiformes [monotypic] 2 Order †Anaspidiformes