As bones encased in rock rotted away, water-borne silica seeped into the crevices, solidifying into opal and preserving precious details for 100 million years.
Scientists have opened an amazing window to the past at Lightning Ridge theage.com.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theage.com.au Daily Mail and Mail on Sunday newspapers.
Published today in the Alcheringa: An Australasian Journal of Palaeontology, evidence of an "Age of Monotremes" has been unearthed by a team of Australian scientists at the Australian Museum (AM), Museums Victoria and Australian Opal Centre.
Scientists have opened an amazing window to the past at Lightning Ridge smh.com.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from smh.com.au Daily Mail and Mail on Sunday newspapers.
Ancient Kangaroos Didn t Hop, Paleontologists Say sci.news - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sci.news Daily Mail and Mail on Sunday newspapers.