Subphylum [Vertebrata] Cuvier, 1812 - vertebrates Class Agnatha Cope, 1889 Subclass †Thelodonti Kiaer, 1932 Order †Thelodontiformes Kiaer, 1932 Family †Boothialepididae Märss, 1999 Genus †Boothialepis Märss, 1999 1 †Boothialepis thorsteinssoni Märss