Horned dinosaurs

Speculation continues over the function of the wicked looking horns and grand neck frill of the larger ceratopsians such as Triceratops. Were they for protection, display or even to control body temperature? The earliest horned dinosaurs were quite small and got about on two legs. The four legged giants that characterise the group came later. Fossil evidence suggests horned dinosaurs originated in what's now Asia during the Cretaceous period, spreading out and thriving as herbivores. Many of the species are recognised from their skulls, which seem to be the part of a ceratopsian skeleton most likely to be preserved.

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