Harenadraco prima is the first species of troodontid dinosaur ever found in the Late Cretaceous Baruungoyot Formation of Mongolia. Life reconstruction of Harenadraco prima. Image credit: Yusik Choi. Harenadraco prima lived in what is now Mongolia during the Late Cretaceous epoch, between 72 and 71 million years ago. The new species belongs to Troodontidae, a group of bird-like theropod dinosaurs known from the Late Jurassic to Late Cretaceous epoch. “Troodontids...