Researchers have discovered the fossil of a new bird-like dinosaur species that roamed the earth around 125 million years ago. The dinosaur, which the team have named the 'Jianianhualong tengi', is a troodontid dinosaur. The Jianianhualong tengi was discovered by an international team of paleontologists, led by the University of Hong Kong. At an estimated one metre (3.3 ft) long, this dinosaur lived around 125 million years ago in a temperate environment. Its fossilized remains were discovered in Northeastern China in Baicai Gou, Liaoning Province – a site famous for its feathered dinosaurs. Jianianhualong tengi represents an important transitional form in the evolution of troodontids, the researchers say. By making comparisons with other troodontids, the researchers showed that Jianianhualong tengi underwent mosaic evolution - some portions of their skeletons evolved without simultaneously affecting the evolution of other portions.

Discovery and naming[]







  • The dinosaur measured just one metre long and lived in temperate climates.
  • It had large feathers on its forelimbs, hind limbs and tail similar to Archaeopteryx.
  • Researchers hope the study will help them better understand the early evolution and function of feathers.