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EXTERNAL VIEW

Thanks to some good fossilized skin impressions preserved in rock, we have a better idea of what Carnotaurus looked like than we have of any other flesh-eating dinosaur. Thousands of non-overlapping, disc-shaped scales covered the body, and rows of similar but noticeably bigger semi-conical scales ran along the back and sides.

In 1985, Argentinian palaeontologist Jose Bonaparte announced news of a big, bizarre dinosaur unlike anything described before. Carnotaurus ('carnivorous bull") had a deeper, shorter, more bull-like head than other theropods.

HEAD FROM FRONT

This front view of a model head of Carnotaurus emphasizes the short, broad, cow-like horns that poked out to either side from above the eyes. The deep snout might imply large nasal organs and a keen sense of smell.

Most extraordinary were the pointed, wing-Me horns above its eyes - perhaps butting weapons used by fighting rivals. Other remarkable features included small, forward-facing eyes, spinal bones with wing-like projections, very short arms, and prominent rows of scales along the back and sides.

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Carnotaurus lived alongside Chubutisaurus, a sauropod three times its length. Perhaps it killed and ate Chubutisaurus young and hunted moderately sized adult ornithopods. Short-armed Carnotaurus evidently assaulted prey or tackled carrion headfirst.


Location: Argentina

Diet: Herbivorous dinosaurs

Size: Length 7.6m (25 ft)

      Weight 1 tonne

Classification:

Family Abelisauridae

Infraorder Ceratosauria

Suborder Theropoda

Order Saurischia

Time (million years ago): 97

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