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Evolution of locomotor cost and endothermy in Archosauria.

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posted on 11.11.2009 by Herman Pontzer, Vivian Allen, John R. Hutchinson

A. Estimates from our Vmusc-based method for slow walking (Fr 0.25) used to reconstruct the evolution of endothermy. Substantial size-related homoplasy is shown. B. Estimates from our hip height-based method for moderate running (Fr 1.0) as a less conservative alternative to Fig. 2A. Endothermy is estimated as ancestral for at least Dinosauriformes.

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