Østaber: Forskelle mellem versioner

<ref name=chimpanzoo>{{cite web | url = http://www.chimpanzoo.org/catarrhi.html | title = Catarrhini Infraorder | publisher = ChimpanZoo (The Jane Goodall Institute) | accessdateaccess-date = januar 2010 | archive-date = 3. juli 2009 | archive-url = https://web.archive.org/web/20090703191805/http://www.chimpanzoo.org/catarrhi.html | url-status = yesdead }}</ref>

<ref name= Schrago>{{cite web | url = http://mbe.oxfordjournals.org/content/20/10/1620.full | title = Timing the Origin of New World Monkeys | accessdateaccess-date = 2010-08-21 | author = Carlos G. Schrago, Claudia A. M. Russo | date = 2003-06-27 | work = Molecular Biology and Evolution | publisher = [[Oxford University Press|Oxford Journals]]}}</ref>