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Re: tiny-armed theropods



 I was thinking of M. and I. as close cousins and P. as a great-great
 grandchild (for some arbitrarily large number of greats), looks like
 my error is in how 'close' those cousins are.

Never forget that the Cretaceous alone lasted longer (close to 80 Ma) than the entire time that has passed since ( ~ 65 Ma).