The evolution of the avian skull is marked by radical transformations of the braincase, palate, and snout. Brain size correlated with major evolutionary innovations like cognition, flight, environm…| Letters from Gondwana.
In April 1842, Owen created the group “Dinosauria” using three taxa: Megalosaurus, Iguanodon, and Hylaeosaurus, based on three main characters: large size and terrestrial habits, uprigh…| Letters from Gondwana.