Figure_S5

Clustering on principal components and spectral density profiles from the nMGL. (a) Hierarchical clustering on spectral density profiles and (b) k-medoids clustering on principal components are computed as in Figure 3, except based on the nMGL. In (A), hierarchical clustering on the spectral density profile identified six clusters of trees (bootstrap probability > 0.95), each corresponding to a distinct underlying diversification model, whose property in terms of speciation-extinction rate variation is summarized in the left column. In (b), only four significant clusters were identified (P < 0.05).