Crew at Marble Canyon Quarry Site (IMAGE) St. John's College, University of Cambridge Caption These are researchers working at the Marble Canyon quarry site where the fossil remains were found. Credit Karma Nanglu 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.