Were there two forms of Stegosaurus?
نویسندگان
چکیده
We recognise that Stegosaurus exhibited exterior chirality and could, therefore, have assumed either of two distinct, mirror-image forms. Our preliminary investigations suggest that both existed. Stegosaurus’s exterior chirality raises new questions such as the validity of well-known exhibits whilst offering new insights into long-standing questions such as the function of the plates. We inform our discussions throughout with examples of modern-day animals that exhibit exterior chirality.
منابع مشابه
The Postcranial Skeleton of an Exceptionally Complete Individual of the Plated Dinosaur Stegosaurus stenops (Dinosauria: Thyreophora) from the Upper Jurassic Morrison Formation of Wyoming, U.S.A.
Although Stegosaurus is one of the most iconic dinosaurs, well-preserved fossils are rare and as a consequence there is still much that remains unknown about the taxon. A new, exceptionally complete individual affords the opportunity to describe the anatomy of Stegosaurus in detail for the first time in over a century, and enables additional comparisons with other stegosaurian dinosaurs. The ne...
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whether enough blood circulated in or around the plates to ensure such a function. Furthermore, while the large, flat plates of Stegosaurus might have been thermoregulatory, it is less easy to imagine this working in the spike-like osteoderms of Kentrosaurus. Another possibility is that the plates had a behavioural function, and were used in either sexual selection (there is no apparent sexual ...
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