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Re: Pterosaur size (Was: Great in the air, not so good underwater)

Jamie Stearns wrote:

Then again, there are lineages that actually decrease in size over the Cretaceous, not just titanosaurs, but dromaeosaurs are another example; compare Utahraptor and Deinonychus from the EK to Bambiraptor and Saurornitholestes from the LK. Though I can't recall exactly when Achillobator lived; that might throw the pattern off.

_Achillobator_ is a Bayen Shireh taxon, so maybe Cenomanian or Santonian (based on magnetostratigraphy).

Of course, if you throw the EK microraptorans into the mix, then these little guys would have a big impact on any calculations.



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