-Animal Diversity Web - http://animaldiversity.org
-A-Z Animals - http://a-z-animals.com
-Chordate Systematics - http://www.pages.drexel.edu/~djc54/final/index.html
-MammalsRus - http://www.mammalsrus.com
-Palaeos - http://palaeos.com
-Reptile Evolution - http://www.reptileevolution.com
-Science News - https://www.sciencenews.org
-The Rise of Placental Mammals, Kenneth D. Rose and J. David Archibald, 2005
-The Tree of Life Project - http://tolweb.org/treehouses
-University of California Museum of Paleontology- http://www.ucmp.berkeley.edu
-Wikipedia - http://en.wikipedia.org
-Youtube.com - https://www.youtube.com


Citation: García, A.I. 2015. The Tree Of Nature (Online) at http://thetreeofnature.com


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