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SGD statistics for the kingdom Plantae (blue dots) and Aves class (open squares) compared with the fitted SEO model for (Upper Right Inset) the Plantae (diversification rate of γ = 0.055 ± 0.005 and origination probability of ν = 0.017 ± 0.0012) and (Lower Left Inset) the Aves (diversification rate of γ = 0.08 ± 0.021 and origination probability of ν = 0.089 ± 0.010).
