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Patagopteryx & Vorona are known from the Late Cretaceous of Argentina and Madagascar respectively. They are more derived than the Enantiornithes. Patagopteryx secondarily lost the ability to fly and has bulky hindlimbs and small wings. It was about the size of a hen. Vorona is only represented by elements of the hindlimb.
Author: Robert Davis
Last updated: 21/11/05
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