This new species, named Zavacephale rinpoche, lived about 108 million years ago (Early Cretaceous period). Young Zavacephale duel for territory along a lakeshore 108 million years ago. Image: Masaya Hattori Arecent discovery in Mongolia’s Gobi Desert has provided the most complete and oldest fossil of an iconic dome-headed dinosaur to date. This new species, named Zavacephale rinpoche, lived about 108 million years ago (Early Cretaceous period). Palaeontologists from North Carolina State University announced the findings on September 17, describing it as a “once-in-a-lifetime discovery.” It belongs to the group pachycephalosaurs — dinosaurs known for their unique head adornments, including domes...