Vertebrata Cuvier, 1812 - vertebrates Class Agnatha Cope, 1889 [paraphyletic] Subclass Cephalaspidomorpha see Class Agnatha Cope, 1889 Order †Anaspida Traquair - anaspids see Class Anaspida Traquair Family †Euphaneropsidae see Family Euphaneropidae Woodward, 1900