Extended Data Fig. 7: Majority rule tree recovered from the constrained Bayesian phylogenetic analysis.

The topology of this tree has been constrained a priori after selecting randomly one of the most-parsimonious trees recovered after forcing the position of lagerpetids as the earliest branching dinosauromorphs in the maximum parsimony analysis. Branch colours indicate character state transition rates, the black horizontal line segments indicate the 95% probability distribution of node ages and the dotted vertical lines indicate the boundaries between the Carboniferous, Permian, Triassic and Jurassic geological periods. Posterior probabilities at the nodes are not shown because the topology is fully constrained.