London : Palæontographical Society, 1853
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In: Philosophical transactions of the Royal Society of London, 1863, vol. 153, p. 33
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In: Monograph on the fossil reptilia of the Cretaceous Formations, 1861, p. 1
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In: Monograph on the fossil reptilia of the Cretaceous Formations, 1859, p. 1
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