Description
Illustration of iguanodon and megalosaurus by Riou in the revised English 1867 translation of Louis Figuier's 'Earth before the Deluge' 1863. The figure shows impressions after the collaboration between the scientist Richard Owen and the artist Benjamin Waterhouse Hawkins. The iguanodon (left) has the thumbspike wrongly placed on its nose. Both it and Megalosaurus (predator right) have the rhino like bodies that Owen envisaged. Gideon Mantell had suspected smaller front limbs but Owen igonored him. Both the position of the spike and the gait was confirmed by the spectacular Bernissart finds in Belgium 1878. it would take the discovery of the first reasonably complete Hadrosaur skeleton in the USA (1858, Leidy description 1864) to change conceptions of the form of dinosaurs and establish their often bipedal gait.
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