Anzu wyliei, the 'Chicken from Hell' Dionosaur (image) University of Utah Share Print E-Mail Caption Anzu wyliei -- a bird-like dinosaur nicknamed the "chicken from hell" that roamed the Dakotas 66 million years ago -- appears in its natural environment in this artist's depiction. Discovery and description of the new dinosaur was announced by the University of Utah, Carnegie Museum of Natural History and Smithsonian Institution's National Museum of Natural History. Credit Mark Klingler, Carnegie Museum of Natural History Usage Restrictions Credit required Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.