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Teenage Dinosaurs Might Have Butted Heads
Dome-headed dinosaurs might have passed through a combative teenage stage in which they butted heads in violent clashes.
New research reveals the skulls of a group of these young dinosaurs would have compressed and rebounded after a head ram, preventing a brain bashing.
The study, to be announced Friday and detailed in the journal Palaeontologia Electronica, sheds light on a debate over head-butting in so-called pachycephalosaurs, or thick-headed reptiles.
This group of relatively small dinosaurs lived from about 80 million to 65 million years ago during the Late Cretaceous Period mainly in Asia and North America, where they likely grazed on ferns and some flowering plants.
Their claim to fame would have to be the dinosaurs' thick bony caps. The ornate head gear ranged from Prenocephale's sloping skull, which resembled a sleek bike helmet, to the lengthy horns that topped the skull of Stygimoloch or the more delicate cap worn by Stegoceras, outlined with a fringe of bony knobs.
