First dinosaur tail preserved in amber

The first non-avian dinosaur tail found in amber is that of a 99-million-year-old mid-Cretaceous theropod dinosaur, currently unnamed, which was discovered embedded in amber from Kachin State, Myanmar (formerly Burma). The lump of amber containing it had been spotted and purchased in 2015 by palaeontologist Dr Lida Xing, from Beijing's China University of Geosciences, while he was browsing among some amber markets in Myanmar. The tail bore feathers, which has provided significant new information concerning the three-dimensional appearance of dinosaur feathers.

Based upon the tail's dimensions and the type of dinosaur from which it had originated, the dinosaur in question had probably been no bigger than a modern-day sparrow. Microscopic analysis showed that even the original colouration of the feathers had been preserved within the amber, with their upper surface being brown and their underside white.