Studies of the horns, spikes, plates and clubs of dinosaurs could help settle a long-standing debate over their function ...

A "remarkable" new species of giant horned, plant-eating dinosaur is among the largest ever found. Lokiceratops rangiformis, a cousin of Triceratops, was identified from a skull discovered in the ...

With a frilled head and beaked face, Menefeeceratops sealeyi, discovered in New Mexico, lived 82 million years ago. It predated its better-known relative, Triceratops. Disclaimer: AAAS and ...

A new study by researchers in China and the United States found that horned dinosaurs saw a decline in their intelligence, hearing and sense of smell as they grew larger over 100 million years.