The Brain-Skull Transition from Dinosaurs to Birds (IMAGE)

Yale University

The Brain-Skull Transition from Dinosaurs to Birds

Caption

These are CT scan images of the skull roof (front bone in pink, parietal in green) and brain (in blue) of, top to bottom, a chicken, the birdlike dinosaur Zanabazar, the primitive dinosaur Herrerasaurus, and Proterosuchus, an ancestral form that diverged before the bird/crocodile split.

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Yale University

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