Saturday, November 12, 2005

Buitreraptor gonzalezorum

Newly discovered birdlike dinosaur is oldest raptor ever found in South America
Relative of Velociraptor rewrites evolutionary charts

Photo by Peter Makovicky, Courtesy of The Field Museum

CHICAGO--The recent discovery of a 90-million-year-old dinosaur in Patagonia demonstrates that dromaeosaurs, a group of carnivorous theropods that includes Velociraptor and is closely related to birds, originated much earlier than previously thought. Rather than originating during the Cretaceous, dromaeosaurs can now be traced back to the Jurassic, possibly as far back as 180 million years ago. Meanwhile, the new dinosaur's birdlike features--its huge, hollow wishbone; long, winglike forelimbs; and bird-like pelvis--provide more evidence linking dinosaurs to birds.

Full Press Release

© 2005 The Field Museum, Photo by John Weinstein

No comments: