Study says new Jurassic bird fossil is 'missing link'
Published in Nature earlier this year, the study by a joint team from the Chinese Academy of Sciences and Fujian Institute of Geological Survey reveals this species as a pivotal "missing link" in bird evolution.
The fossil, unearthed in Zhenghe's swampy deposits in November 2023, showcases a pygostyle — a fused tailbone central to modern birds' flight mechanics. This feature shifts a bird's center of gravity, enabling precise aerial control.
Previously, such advanced traits were believed to have emerged much later. Unlike Archaeopteryx, a feathered dinosaur with a reptilian tail, Baminornis bridges the anatomical gap between dinosaurs and true birds.
The Zhenghe Fauna, a lush Jurassic wetland ecosystem teeming with diverse life, offers unprecedented insights into post-dinosaur evolution.
"This discovery rewrites textbooks, showing birds' dinosaurian roots and their leap from land to sky," said CAS academician Xu Xing.
Researchers continue exploring Zhenghe's fossil beds, hinting that even older avian ancestors may await discovery. As science peels back layers of time, one truth remains: evolution's story is ever-unfolding. - China Daily/ANN
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