Two feathered dinosaurs from northeastern China

Ji Qiang, Philip J. Currie (), Mark A. Norell and Ji Shu-An
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Ji Qiang: National Geological Museum of China
Philip J. Currie: Royal Tyrrell Museum of Palaeontology
Mark A. Norell: American Museum of Natural History
Ji Shu-An: National Geological Museum of China

Nature, 1998, vol. 393, issue 6687, 753-761

Abstract: Abstract Current controversy over the origin and early evolution of birds centres on whether or not they are derived from coelurosaurian theropod dinosaurs. Here we describe two theropods from the Upper Jurassic/Lower Cretaceous Chaomidianzi Formation of Liaoning province, China. Although both theropods have feathers, it is likely that neither was able to fly. Phylogenetic analysis indicates that they are both more primitive than the earliest known avialan (bird), Archaeopteryx. These new fossils represent stages in the evolution of birds from feathered, ground-living, bipedal dinosaurs.

Date: 1998
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DOI: 10.1038/31635

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