Kobayashi and his colleagues christened the new therizinosaur, Duonychus tsogtbaatari. The genus name means “double claw”, ...

We know this because some fossils from creatures such as Archaeopteryx and Sinosauropteryx — both theropod dinosaurs — have preserved feather imprints. And some Velociraptor fossils have tiny ...

Birds that fill the world’s skies today are living dinosaurs, reminders of a distant and strange past. Decades of major new discoveries and studies have convinced researchers that there’s a direct ...

Despite the increasingly clear picture of the evolution of birds from theropod dinosaurs that has emerged, a few scientists are still unconvinced. No alternative hypothesis has been offered to ...

An analysis of nearly 120 dinosaur species and more than 1,500 skeletal features revealed that the theropod lineages that are thought to have been direct ancestors of birds evolved skeletal ...

These finds rewrite the evolutionary history of theropod dinosaurs, uncovering a predator hierarchy unique to Cretaceous Australia. The research, led by Museums Victoria Research Institute and ...

Australia, land of kangaroos and koalas, today reveals an unsuspected prehistoric past. Fossils of theropod dinosaurs, including the oldest known megaraptorids and the first carcharodontosaurs on the ...

Birds are actually dinosaurs. They evolved from theropods, a group of mostly meat-eaters that included Velociraptor and T. rex. Pterodactyls are flying reptiles that lived at the same time as the ...