1821 in paleontology
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Dinosaurs
- On 21 June, Gideon Algernon Mantell displays his IguanodonIguanodonIguanodon is a genus of ornithopod dinosaur that lived roughly halfway between the first of the swift bipedal hypsilophodontids and the ornithopods' culmination in the duck-billed dinosaurs...
fossils to the Geological Society, but arouses little interest.