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Re: Earliest Neornithean?
T. Mike Keesey wrote:
Does anyone know which time period the earliest known neornithean hails
I have _Ambiortus dementjevi_ listed as Barremian-Aptian
(Khurilt-Ulan-Bulak, Bajan-Khongor aimek, Mongolia; Unduruhinskaya
Formation). Not sure if it qualifies as a true neornithine or even an
ornithurine - then again, I don't think anyone's sure.
_Gansus yumenensis_ is Early Cretaceous too, but I'm not sure of the exact
age - nor, again, if it's a true neornithine.
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