Photo: A skull of Sulcavis geeorum. Scale bar in millimeters (Stephanie Abramowicz)
Photo: Sulcavis geeorum, a fossil bird from the Early Cretaceous of Liaoning Province, China with scale bar in millimeters (Stephanie Abramowicz)
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Sulcavis geeorum, a fossil bird from the Early Cretaceous of Liaoning Province, China with scale bar in millimeters (Stephanie Abramowicz)
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