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A new dicynodont-related paper is available online: Chloe Olivier, Bernard Battail, Sylvie Bourquin, Camille Rossignol, J.-Sebastien Steyer & Nour-Eddine Jalil (2019) New dicynodonts (Therapsida, Anomodontia) from near the Permo-Triassic boundary of Laos: implications for dicynodont survivorship across the Permo-Triassic mass extinction and the paleobiogeography of Southeast Asian blocks, Journal of Vertebrate Paleontology, DOI: 10.1080/02724634.2019.1584745 Dicynodon incisivum was the first dicynodont and first pre-Mesozoic tetrapod found in Laos, but has been dismissed as a nomen dubium. The description of Counillonia and Repelinosaurus makes clear that kannemeyeriforms and Dicynodon-like forms co-existed during the interval across Permian-Triassic boundary. By the way, is there a copy of the following paper available that I could skim through?
An international team of paleontologists, which includes the University of Bristol, have identified the world's oldest lizard, providing key insight into the evolution of modern lizards and snakes. "This is the story of the re-discovery of a specimen and highlights the importance of preserving naturalistic specimens in well maintained, publicly accessible collections." LINK
Hi, I'm mike. I have been reading forum posts for a while now, thought I'd join to share and learn.. I became aware of the local geological features late in life, but now have more time for rock kicking. The Newcastle coastline has many , easily accessible, points of interest, volcanic dykes, faults, petrified trees, fossils and exposures. They are in the stratigraphy of the Newcastle Coal Measures, Northern Sydney Basin, late Permian 252-255 Ma. The majority of preservations are Glossopterids but also horsetails, cordaites and ferns. Maybe not as spectacular as dinosaur bones, but interesting all the same. I recently picked up a couple of specimens at a local rock platform that might be of interest. The names and classification are a bit confusing to me, but I've tried to ID them using Mary White's Greening of Gondwana and Australian Fossil Plants, and quote her descriptions. Please indicate any errors! Photo 1 (..637) Palaeovitiaria, ( glossopterid leaf ), no mid rib, no medium groove and the veins are almost parallel with few cross connections. Photo 2 (..644) On the left, glossopteris leaf, prolific in the area, On the right, Umbellaphyllites ivinii, a horsetail ( arthrophytes ) with leaf sheath segments completely fused, like a little umbrella. Photo 3 & 4 (..641 & ..642) Both sides of a typical fossiliferous rock found adjacent to the coal seams, a compressed mass of various leaves and stems. This example has been mineralised (grey siderite??) , but has not completely "rusted" thru to form a red/brown limonite ?? Regards, mike.