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Gansus
Gansus is a genus of aquatic birds that lived during the Albian stage of the Early Cretaceous period (around 110 million years ago) in what is now Gansu province, western China. It is the oldest-known Ornithurae, the group which includes modern birds (Neornithes) and extinct relatives groups, such as Ichthyornithes and Hesperornithes.
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