Redigerer Fjær (avsnitt)

== Referanser ==
<references>
<ref name="Foster & Smith (2016)">Foster & Smith (2016), [http://www.peteducation.com/article.cfm?c=15+1829&aid=2776 Bird Feather Types, Anatomy, Growth, Color, and Molting]. ''Veterinary & Aquatic Services Department'', Drs. Foster & Smith. Besøkt 2016-08-14</ref>

<ref name="Illustrert Vitenskap (2013)">Illustrert Vitenskap (29. august 2013), [http://illvit.no/dyr/fugler/hvordan-vokser-fuglefjar Hvordan vokser fuglefjær?] ''Ill. Vit.'' Besøkt 2016-08-14</ref>

<ref name="Martin & Czerkas (2000)">Larry D. Martin, Stephan A. Czerkas (August 2000). [http://dx.doi.org/10.1093/icb/40.4.687 The Fossil Record of Feather Evolution in the Mesozoic]. ''American Zoologist'' '''40'''(4): 687-694. doi: 10.1093/icb/40.4.687</ref>

<ref name="Xu ''et al.'' (2011)">X. Xu, H. You, & F. Han, [http://dx.doi.org/10.1038/nature10288 An Archaeopteryx-like theropod from China and the origin of Avialae], ''Nature'' '''475''', 465-470 (28 July 2011)</ref>
</references>