What structure associated with *Stegosaurus* does the text confirm *Xenotarsosaurus* lacked?
Answer
Iconic plates
When introducing Xenotarsosaurus, the text establishes its distinct morphology by comparing it implicitly or explicitly to other famous dinosaurs. It specifically states that this creature did not possess the iconic plates associated with the Stegosaurus family. This differentiation helps set expectations regarding its anatomy; instead of relying on dermal armor or plates for defense or thermoregulation like Stegosaurus, Xenotarsosaurus relied on its specialized limb structure and presumed agility, fitting its classification as a medium-sized theropod.

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