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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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