Vertebrata Cuvier, 1812 - vertebrates Gnathostomata Class †Placodermi McCoy, 1848 Order †Arthrodira Woodward, 1891 see Order Arthrodiriformes Grande & Eastman, 1986 Suborder †Actinolepina Miles, 1973 see Suborder Actinolepidoidei Miles, 1973 1 Family †Actinolepidae Gross, 1940 2 Family †Goodradigbeeonidae