vertebrates Lamarck, 1801 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Class †Pteraspidomorphi Goodrich, 1909 see Class Pteraspidomorpha
     Subclass †Heterostraci Lankester, 1868
       Order †Pteraspidiformes Berg, 1940
         Suborder †Pteraspidoidei Berg, 1940
           1 Family †Podolaspididae Zych, 1931
           2 Family †Larnovaspididae Novitskaya, 1986
           3 Family †Rhinopteraspididae Novitskaya, 1983
           4 Family †Protaspididae Bryant, 1933
           5 Genus †Pavloaspis Voichyshyn, 1999, incertae sedis [monotypic]
           6 Genus †Loricopteraspis Tarlo, 1961, incertae sedis [monotypic]
           7 Genus †Palanasaspis Voichyshyn, 2011, incertae sedis [monotypic]
           8 †"Pteraspis" angustata Alth, 1874, incertae sedis