Figure 4.

Highly contradictory temporal signals are exhibited by thoracosaurs and the rest of the crocodilian fossil record: DNA + Morphology phylogenies of crocodilians, tip-dated using only non-thoracosaur fossils and only thoracosaurs. (a) Non-thoracosaur fossils only, resulting in shallow divergences similar to those retrieved by the full dataset (figure 2a). (b) Thoracosaurs only, resulting in very different and much deeper divergences. Colour coding as in figure 2; numbers refer to clade posterior probabilities.