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Story of a dinosaur fossil https://www.abc.net.au/news/2020-11-20/opal-fossils-that-introduced-a-new-species-from-the-deep-past/12798212

The Royal Terrell Museum shared a super specimen they collected and prepared of a Gorgosaurus that is the most complete juvenile tyrannosaur specimen discovered in Canada (and possibly even in North America). The Museum of the Rockies gave the skull of Big Al, MOR 693, a much needed acetone bath, new coat of vinac & a new conservation cradle before going back on exhibit. Big Al is one of the most complete Allosaurus specimens in the world! The most complete sauropod specimen known is CM 11338, a juvie Camarasaurus lentus. Courtesy: Saurian Spence A tyrannosaur tooth from the Campanian of Alberta, NHM London Check out remarks on label Allosaurus snoot, very cool. Check out those pretty, jet black dagger teeth w serrations. From ROM toronto collections, Late Jurassic, Cleveland-Lloyd Quarry, Utah. Big chompers The holotype of Styracosaurus albertensis (CMN 344) at the Museum of Nature. This centrosaurine ceratopsian dinosaur was collected by Sternberg in Alberta (in what's now Dinosaur Provincial Park), and named by Lambe in 1913 More Gorgosaurus, Healed bite marks in fossilized tyrannosaur skulls suggest they regularly engaged in face-biting behaviour. This Gorgosaurus upper jaw is an extreme example, with five raised scars. Look at the size of that back tooth .. thats a 10cm scale, who said Gorgo teeth were small. Makes me rethink how large these teeth got +3" does not appear unrealistic @-Andy- A ornithopod cutie Weewarrasaurus, described from a stunning piece of colourful opalized jawbone from Down Under. Thanks John Pickrell

Opal-Filled Fossils Reveal Timid, Dog-Size Dinosaur That Lived Down Under By Laura Geggel, January 17, 2019 https://www.livescience.com/64522-opal-dinosaur-fossils-in-australia.html https://www.sciencealert.com/a-gorgeous-opalised-fossil-turned-out-to-be-an-unknown-species-of-dinosaur Bell, P.R., Herne, M.C., Brougham, T. and Smith, E.T., 2018. Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia. PeerJ, 6, p.e6008. https://peerj.com/articles/6008/ Yours, Paul H.