Yanornithiformes

Yanornithiformes is an order of ornithuromorph birds from the early Cretaceous Period of China. All known specimens come from the Yixian Formation and Jiufotang Formation, dating to the early Aptian age, 124.6 to 120 million years ago. The family Songlingornithidae was first named by Hou in 1997 to contain the type genus, Songlingornis. Clarke et ...
Found on http://en.wikipedia.org/wiki/Yanornithiformes
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