A new geological study by @RBINSmuseum confirms Kulindadromeus zabaikalicus from Siberia is the oldest known #dinosaur with feather-like structures. Associated zircons and pollens suggest that Kulindadromeus is 168 to 166 million yrs old (Middle Jurassic). https://t.co/PQU059G5yp https://t.co/KNonqJ7Ocx