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A paper on a pocket-sized winged “dinosaur” is being retracted after new unpublished findings cast doubt on the authors’ characterizations of their discovery.
The study, “Hummingbird-sized dinosaur from the Cretaceous period of Myanmar,” was published in Nature on March 11, 2020. Many news outlets, including the New York Times, Newsweek and National Geographic, picked up on the findings.
Then on March 18, Zhiheng Li of the Chinese Academy of Sciences, along with co-authors, posted a comment on bioRxiv about the study, casting doubt on whether the amber-encased specimen was in fact a dinosaur or avian species.
Nature updated the study with an expression of concern on May 29, which said:
Continue reading A big Nature study on a tiny dinosaur is being retracted