Geology PalaeontologyResearchers discover ‘epic’ new Burgess Shale site in Canada’s Kootenay National ParkHeritageDailyFebruary 11, 2014December 27, 2015 by HeritageDailyFebruary 11, 2014December 27, 20153 290 Yoho National Park's 505-million-year-old Burgess Shale.