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.e