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The first dinosaur to ever be scientifically named, almost 20 years before we even had the word ‘dinosaur’. In 1824, the geologist and priest William Buckland (1784-1856) stood before the Geological Society of London and announced something that would kickstart two centuries of dinosaur science. He’d been studying large, fossilised bones which didn’t resemble those of any living animal - and, as he told his rapt audience at that meeting, he had a new name for this mysterious and unusual creature: Megalosaurus. Misha Glenny and his guests discuss why the 19th century was such profound period of theological and scientific change, and how our understanding of mid Jurassic dinosaurs has changed since. This In Our Time episode examines the story of a dinosaur that led to palaeontology as we know it today. The discussion explores the influential roles of William and Mary Buckland, how we learn about animals from over 160 million years ago, and why you’d never have seen a Megalosaurus and a Tyrannosaurus Rex together. With Emily Rayfield Professor of Palaeobiology at the University of Bristol Emma Nicholls Vertebrate Palaeontologist and Collections Manager at Oxford University Museum of Natural History And Steve Brusatte Professor of Palaeontology and Evolution at the University of Edinburgh Producer: Martha Owen Reading list: Deborah Cadbury, Terrible Lizard: The First Dinosaur Hunters and the Birth of a New Science (Owl Books, 2002) Michael Taylor, Impossible Monsters: How the Discovery of Dinosaurs Changed the World (Bodley Head, 2024) Roger B. J. Benson, ‘A description of Megalosaurus bucklandii (Dinosauria: Theropoda) from the Bathonian of the UK and the relationships of Middle Jurassic theropods’ (Zoological Journal of the Linnean Society, 158, 2010) William Buckland, ‘XXI.—Notice on the Megalosaurus or great Fossil Lizard of Stonesfield’ (Transactions of the Geological Society of London, 2:1, 1824) P. Wilson et al, ‘Utilizing X-ray computed tomography for heritage conservation: The case of Megalosaurus bucklandii’ (2017 IEEE International Instrumentation and Measurement Technology Conference 12MTC, Torino, 2017) In Our Time is a Â鶹Éç Studios production A world-class seminar every week. Spanning history, religion, culture, science and philosophy, In Our Time celebrates the pursuit of knowledge and the enduring power of ideas. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.