An pagkakaiba han mga rebisyon han "Cephalaspidomorphi"

 

== Mga kasarigan ==

<references>

<ref name = "COL">{{cite web |url= http://www.catalogueoflife.org/annual-checklist/2011/search/all/key/cephalaspidomorphi/match/1|title= Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.|author= Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (red.)|year= 2011|publisher= Species 2000: Reading, UK.|accessdate= 24 september 2012}}</ref>