The World Dinosaur Valley Museum had several mounted skeletons of the interesting theropod, Sinosaurus triassicus.  Up until a few days ago, this critter was stuck with the erroneous moniker, Dilophosaurus sinensis.

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Sinosaurus triassicus

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Sinosaurus triassicus cranium

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A nice view of the occipital region of S. triassicus

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Mandibles of S. triassicus

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Mounted Sinosaurus triassicus with a very small portion of the museum’s Lufengosaurus specimens in the background (more on those later).

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This specimen with seemingly reduced crests caught my attention. Not sure if this was the result of sexual dimorphism, ontogenetic variation or an artifact of preservation. As this critter was about the same size as the other specimens, I don’t this variation was due to ontogeny. The specimen was mounted more than a couple of meters overhead, so it was impossible to get a better look at it. I’d greatly appreciate it if anyone familiar with the specimen could tell me more about it.

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