Rubeosaurus dinosaur in a prehistoric environment

A forest green Rubeosaurus in a prehistoric environment. It is widely believed that some dinosaurs, especially horned and frilled dinosaurs, had a covering of keratin, hardened skin, over their faces, frills and horns. Keratin is like fingernails and can be like skin or form hard and sharp coverings for horns and claws, like claws and beaks on birds. It is possible some may have been very colorful for display or mating

Beak Centrosaurinae Ceratopsia Ceratopsid Colorful Frill Hoofed Horned Ornithischia Ovatus Paleoart Rubeosaurus Spiked Woodlands

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