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Andy travels back 127 million years to the time of ornithocheirus - one of the largest flying pterosaurs that ever lived. His mission is to find the skeleton of a sand dollar - a sea creature which spent its life crawling around on the ocean floor. Along the way he comes nose to beak with a tapejaras, a pterosaur which had a beautiful red crest, before taking to the skies on the back of an ornithocheirus. But, will Andy succeed in time before the museum opens?
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