Vertebrata Cuvier, 1812 - vertebrates
   Class Agnatha Cope, 1889 [paraphyletic]
     Subclass †Pteraspidomorphi Goodrich, 1909 see Class Pteraspidomorphi Goodrich, 1909
       Order †Thelodontida see Order Thelodonti Jaekel, 1911
         Family †Turiniidae Obruchev, 1964 [monotypic]
           1 Genus †Turinia Traquair, 1896