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Re: Tetanurae

As for the relationship between Ceratosaurus, coelophysoids, abelisauroids, and tetanurans, I would say that while coelophysoids are probably a paraphyletic group leading up to (neo)Ceratosauria/Tetanurae, abelisauroids still can be grouped with Ceratosaurus, as osteoderms were found in both Ceratosaurus and Carnotaurus, but not, to my knowledge, in any tetanuran for which skin impressions are known.