Powered, winged flight evolved prior to the latest Jurassic

According to a new study that examined the wing structure of three Archaeopteryx specimens, the  animals which have been assigned to the late Jurassic period (150 mil. years old) likely flew short distances through the use of a quick flapping action (very much like modern birds).  This is news because, according to extant literature, dinosaurs of this type were incapable of this kind of flight but were rather thought to be gliders.  Are we now to understand that dinosaurs were zipping around like birds before the late Jurassic period?  Once again, “established science” is no longer nearly so established as it once seemed…


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