The journal Nature has issued a retraction for a paper it published March 11th called “Hummingbird-sized dinosaur from the Cretaceous period of Myanmar.” The editorial staff was alerted to a possible misclassification of the fossil embedded in amber, and after review, agreed with the assessment and issued the retraction.
Click here for original story, Paper describing hummingbird-sized dinosaur retracted
Source: Phys.org