How are dinosaurs preserved and reconstructed?
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Usually the bones were scattered before fossilization, so paleontologists often have to excavate a wide area around the first finds in order to make sure that they have not missed any important parts. The remains may be taken to a museum still embedded in a block of stone.
Once the rock is removed, the fossil bones are reconstructed on a metal frame. These bones have now turned to stone and so they are very heavy and brittle.
As a result many museums make casts of the bones in plastic, which can then be jointed together for display.
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Date Added: 21 December '11
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