A proposed phylogeny for the Hadrsosaurs
from Prieto-Márquez, A. 2010. Global phylogeny of Hadrosauridae (Dinosauria: Ornithopoda) using parsimony and Bayesian methods. Zoological Journal of the Linnean Society. 159:435–502.
read more: http://qilong.wordpress.com/2011/08/09/o-crest-less-one/
(via: NovaTaxa)
(via scientificillustration)
Árbol genealógico de Steven Spielberg y creo que así se comprende todo…
image what the world would look like if dinosaurs hadn’t disappeared. Evolution would have changed them into…what?