Brusatte, Stephen L.; Butler, Richard J.; Barrett, Paul M.; Carrano, Matthew T.; Evans, David C.; Lloyd, Graeme T.; Mannion, Philip D.; Norell, Mark A.; Peppe, Daniel J.; Upchurch, Paul; Williamson, Thomas E.
(2014)
Non-avian dinosaurs went extinct 66?million years ago, geologically coincident with the impact of a large bolide (comet or asteroid) during an interval of massive volcanic eruptions and changes in temperature and sea level. ...