vertebrates Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   †Pteraspidimorphi [paraphyletic]
     †Heterostraci Lankester, 1868, sedis mutabilis - heterostracans
       Genus †Cardipeltis Branson & Mehl, 1931
         1 †Cardipeltis bryanti Denison, 1966, sedis mutabilis
         2 †Cardipeltis richardsoni Denison, 1966, sedis mutabilis
         3 †Cardipeltis wallaci Branson & Mehl, 1931, sedis mutabilis