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Keywords from Image Description:
Iguanodon sacrum. en Engraving of the fossil sacrum of an Iguanadon from Additional Observations on the Osteology of the Iguanodon and Hylaeosaurus Gideon Algernon Mantell and Melville Philosophical Transactions of the Royal Society of London Vol jstor org seq Unknown engraver PDold engravings Sacrum Mantellisaurus Sacral