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Re: Dr. Holtz' secret: Buitreraptor gonzalezorum

<<Rather than originating during the Cretaceous, dromaeosaurs can now be
traced back to the Jurassic, possibly as far back as 180 million years

Um, Upper Jurassic dromie fossils had already been found.  This certainly
applies to the Kimmeridgian Guimarota locality in Portugal.  I seem to
recall there's further material from the Morrison Formation.  In other
words, they already have been traced back to the Jurassic.