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Fig. 1 | BMC Evolutionary Biology

Fig. 1

From: Unappreciated diversification of stem archosaurs during the Middle Triassic predated the dominance of dinosaurs

Fig. 1

Archosauromorph relationships and skulls (in lateral view) exemplifying shape diversity. a Simplified time-calibrated phylogeny showing the main groups of archosauromorphs existing from the late Permian to the Early Jurassic. b The rhynchosaur Bentonyx sidensis. c The proterosuchid Proterosuchus fergusi. d The erythrosuchid Erythrosuchus africanus. e The proterochampsid Gualosuchus reigi

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