Big Dig (IMAGE) Columbia Climate School Caption A team from the Nanjing Institute of Geology and Paleontology at a site where many Psittacosaurus remains have been unearthed. At right, one of the quarries dug by local people in search of fossils. Credit Paul Olsen Usage Restrictions Credit must be given. License Original 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.