A fossilised dinosaur leg and fish discovered in North Dakota are believed to have died at the same time an asteroid struck earth 66 million years ago. The asteroid is believed to have ended the reign of the dinosaurs and brought about the rise of mammals on our planet. Professor Phil Manning, Director for the Interdisciplinary Centre for Ancient Life at the University of Manchester, has been working on the discovery for eight years SUBSCRIBE to our YouTube channel for more videos: / skynews Follow us on Twitter: / skynews Like us on Facebook: / skynews Follow us on Instagram: / skynews Follow us on TikTok: / skynews For more content go to http://news.sky.com and download our apps: Apple: https://itunes.apple.com/gb/app/sky-n... Android https://play.google.com/store/apps/de... Sky News videos are now available in Spanish here/Los video de Sky News están disponibles en español aquí https://www.youtube.com/channel/skyne... Sky News videos are also available in German here/Hier können Sie außerdem Sky News-Videos auf Deutsch finden: / channel To enquire about licensing Sky News content, you can find more information here: https://news.sky.com/info/library-sales