In 1849, a few years before his death in 1852, Mantell realised that the genus today known as "Mantellodon" was not a heavy, pachyderm-like animal, as Owen was putting forward, but had slender forelimbs; however, his passing left him unable to participate in the creation of the Crystal Palace dinosaur sculptures, and so Owen's vision of the dinosaurs became that seen by the public for decades. With Benjamin Waterhouse Hawkins, Owen had nearly two dozen lifesize sculptures of various prehistoric animals built out of concrete sculpted over a steel and brick framework; two "Mantellodon", one standing and one resting on its belly, were included. Before the sculpture of the standing "Mantellodon" was completed, a banquet for twenty was held inside it.