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Re: Coelurus a maniraptoran (for how long?)



> I'm no
> oological expert, but dinosauroid prismatic (including dendroolithids)
> doesn't look that different from ornithoid.  The mammillae simply extend
> further distally and the distal portion is prismatic, not squamatic.  I
> could think of several reasons segnosaurs might have reversed to a
> dinosauroid prismatic morphology [...]

OK, but dendroolithid eggshell structure is dinosauroid-spherulitic, not
dinosauroid-prismatic, according to Eggs, Nests and Baby Dinosaurs -- that
requires 2 reversals.