A 166-million-year-old Middle Jurassic herbivorous dinosaur, the size of a large dog and bipedal, has been discovered on the ...

Mexidracon longimanus, an ornithomimid with extra-long arms. The new find significantly rewrites the diversity of dinosaurs.

A recent study by Keifeng Yu and his colleagues, published in Acta Geologica Sinica, describes the discovery and ...