Kingdom Animalia Subclass Cornuata | Phylum Chordata | |
Order †Cephalaspidida
Moy-Thomas and Mile 1971 Similar Thyestiida, Ateleaspis, Auchenaspis, Zenaspis, Thyestes | ||
Cephalaspidida is an extinct order of jawless fish in the subclass Cornuata.
References
Cephalaspidida Wikipedia(Text) CC BY-SA