dromaeosaurid Member of a coelurosaurid branch of the theropod dinosaurs, which developed from the genus Dromaeosaurus (the ‘emu reptile’), known from the early Upper Cretaceous of Canada. Dromaeosaurids had relatively large brain cases and may have been among the most intelligent reptiles ever to have lived.

dromaeosaurid A member of the Coelurosauria branch of the theropod dinosaurs which developed from the genus Dromaeosaurus (the ‘emu reptile’), known from the early Upper Cretaceous of Canada. Dromaeosaurids had relatively large brain cases and may have been among the most intelligent reptiles ever to have lived.