Subphylum [Vertebrata] Cuvier, 1812 - vertebrates Class Agnatha Cope, 1889 Subclass †Thelodonti Kiaer, 1932 Order †Thelodontiformes Kiaer, 1932 Family †Lanarkiidae Obruchev, 1949 Genus †Phillipsilepis Märss, Wilson & Thorsteinsson, 2002 †Phillipsilepis crassaᵀ Märss, Wilson & Thorsteinsson, 2002