„Pygoscelis” változatai közötti eltérés

*†''[[Pygoscelis tyreei]]'' [[George Gaylord Simpson|Simpson]], 1972<ref>{{cite book |title=Checklist of the Birds of New Zealand, Norfolk and Macquarie Islands, and the Ross Dependency, Antarctica |author=Gill, B.J. (Convener, OSNZ Checklist Committee) ''et al''. |year=2010 |series=Fourth edition |publisher=Te PaPa Press in association with the Ornithological Society of New Zealand |location= Wellington|isbn=978-1-877385-59-9 |pages=330 |url= }}</ref> - késő pliocén; [[Új-Zéland]]