The worldwide diversification of core corvoid birds (737 species). In this graphical presentatioin, species richness patterns representing the 1st root-path quartile (the 25% of species with the shortest root-paths based on the supertree) are displayed with violet color, and the 75% of more terminal species are displayed in green. A proportionally equal representation of the two groups produces neutral (grey) hues and the total species richness is shown as brightness.

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