Yi qi, a bizarre Jurassic dinosaur, had bat-like wings partly supported by a long, rod-like bone extending from its wrist – a unique feature not found in any other known creature.
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Irritator's skull was deliberately altered by fossil hunters who tried to make it more marketable, filing down parts of it before it was studied scientifically.
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Zhuchengtyrannus, despite its large size, is known from relatively few fossils, making some aspects of its anatomy and lifestyle still debated among paleontologists.
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