Mosasaur Tails - "Teaching the Controversy"

Mosasaur Tails - "Teaching the Controversy"

Mosasaurs have become all the rage lately with the release (and immense popularity) of Jurassic World. Purely by coincidence I had a commission for a mosasaur, Tylosaurus pembinensis. I hadn't done a mosasaur before (or any lizards), but I'm reasonably familiar with squamate osteology so I figured it wouldn't be nearly as far "out there" as say doing a skeletal of an actinopterygian fish. But it turns out that when it comes to their tail fins, science is still in the middle of telling the mosasaurs' tale...

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Aquatic Spinosaurus - The authors respond

Aquatic Spinosaurus - The authors respond

As most of you reading this will know, I've written two posts on Spinosaurus - the first one questioned the proportions of the composite skeleton that recently gained fame through a paper in Science, the second one discussing a photo that has been used for and against those proportions. In the comments section on the second post Nizar Ibrahim wrote a length response, which (with his kind permission) I would like to elevate to a full post. As is often true in these debates there are parts I agree with and others I disagree with, but I will address those at a future date. For now I think it's only fair to give their comments the floor...

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