Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

The four rules of dinosaur feathers
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Monge Nájera, J. (2021). The four rules of dinosaur feathers. Revista De Biología Tropical, (8).


If you just read the media, you must be confused, were many dinosaurs feathered or not? New contradictory headlines are published all the time. Here I check the scientific literature to answer this question and present the four rules of dinosaur feather evolution.
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Black, R. (2010). Thomas Henry Huxley and the Dinobirds. Smithsonian Magazine.

Switek, B. (2010). Thomas Henry Huxley and the reptile to bird transition. Geological Society, London, Special Publications, 343 (1), 251-263.

Bell, P. R., Campione, N. E., Persons IV, W. S., Currie, P. J., Larson, P. L., Tanke, D. H., & Bakker, R. T. (2017). Tyrannosauroid integument reveals conflicting patterns of gigantism and feather evolution. Biology letters, 13(6), 20170092.

Xu, X., Wang, K., Zhang, K., Ma, Q., Xing, L., Sullivan, C., ... & Wang, S. (2012). A gigantic feathered dinosaur from the Lower Cretaceous of China. Nature, 484(7392), 92-95.

Xu, X., & Guo, Y. (2009). The origin and early evolution of feathers: insights from recent paleontological and neontological data. Vertebrata PalAsiatica, 47(4), 311-329.


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