Microraptor Illustration (IMAGE) American Museum of Natural History Caption This is an artist's recreation of Microraptor, a pigeon-sized, four-winged dinosaur that lived about 130 million years ago. Recent research has shown that the dinosaur had iridescent plumage. Credit (Jason Brougham/University of Texas) Usage Restrictions None License Licensed content 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.