NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
William Daniel Conybeare (1787-1857), British geologist. Conybeare co-published 'Outlines of the Geology of England and Wales' (1822) in which he used fossils to date sedimentary strata, so giving the stratigraphy of British rocks. He was involved in the discovery of dinosaur fossils, naming Iguanodon and Plesiosaurus. Conybeare opposed Lyell's theory of geological uniformitarianism, which claimed there was constant, gradual change in the Earth's crust. Conybeare, who studied the geology of Bristol coalfields, was a member of the Geological Society. This charcoal-on-paper drawing, circa 1824, is from the Natural History Museum, London, UK.
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