Grooves, spiky shield not previously seen in Triceratops relatives
Mark Witton; Mike Skrepnick
Two newly discovered Triceratops relatives sported some peculiar headgear.
Researchers uncovered skull fragments of Machairoceratops cronusi in 77-million-year-old mudstone from the Wahweap Formation in southern Utah. Unlike other horned dinosaurs, the roughly 8-meter-long M. cronusi had two grooved horns with spatula-like tips bowed forward from the back of its neck shield. The grooves’ function baffles researchers.