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New Archaeopteryx fossil sheds light on bird evolution

By Li Menghan | chinadaily.com.cn | Updated: 2025-05-15 21:36
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3D model of skull of the Chicago Archaeopteryx and the palatal evolution in paravians. [Photo provided to chinadaily.com.cn]

Significantly, the Chicago specimen is the first known Archaeopteryx fossil to preserve tertials — the flight feathers closest to the body. These feathers, not previously seen in non-avian feathered dinosaurs, may represent a flight-related innovation and an important evolutionary step toward powered flight.

The study, published in the journal Nature in May, was supported by the National Natural Science Foundation of China.

Feather distribution of the Chicago Archaeopteryx. [Photo provided to chinadaily.com.cn]
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