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carnotaurus: carnivore dinosaur from the Cretaceous era

Carnotaurus Facts

Pronunciation: CAR-no-TORE-us

Name meaning: Meat-eating bull

Diet	Carnivore
Height	3m
Length	8m
Weight	1.5 tonnes
Speed	55 km/h
Environment	Land
Era	Cretaceous
Period	Late Cretaceous
Type	Theropod
Location	Argentina

Carnotaurus was a fearsome theropod dinosaur that roamed South America during the Late Cretaceous period, approximately 72 million years ago. This remarkable predator is known from a single, exceptionally well-preserved skeleton discovered in Argentina's Chubut Province in 1984, making it one of the best-understood theropods from the Southern Hemisphere.

The most striking feature of Carnotaurus was the pair of devil-like horns protruding from above its eyes, giving this theropod its distinctive 'meat-eating bull' appearance. Standing about 3 metres tall at the hip and measuring 8 metres in length, Carnotaurus was built for speed rather than brute strength. Its long, powerful legs and lightweight build suggest it was one of the fastest large predators of its time, capable of reaching speeds of up to 55 km/h whilst pursuing prey across the ancient South American landscape.

As a carnivore, Carnotaurus hunted other dinosaurs, using its speed to chase down victims. Its small arms were even more reduced than those of Tyrannosaurus rex, appearing almost vestigial. The dinosaur's skull was relatively short compared to other large theropods, and its forward-facing eyes provided excellent depth perception for tracking prey.

Carnotaurus belonged to a group of Southern Hemisphere predators that dominated the ecosystems of the ancient supercontinent Gondwana, representing a unique evolutionary lineage quite different from the more familiar northern theropods.

What made Carnotaurus distinctive?

Carnotaurus is instantly recognisable by the pair of prominent horns above its eyes, resembling a demonic bull. It had extremely reduced arms that were even smaller than those of T. rex, and unusually long, powerful legs built for high-speed pursuit of prey.

Behaviour

Carnotaurus was likely an active pursuit predator, using its exceptional speed to run down prey across open terrain. Its forward-facing eyes suggest it was a visual hunter that relied on spotting and chasing victims rather than ambush tactics.

Fun Facts About Carnotaurus

Carnotaurus had the most reduced arms of any large theropod, with forearms so tiny they lacked proper elbow joints
Its horns were likely covered in keratin sheaths, making them appear even larger and more intimidating in life
Carnotaurus is the first theropod dinosaur discovered with preserved skin impressions, showing it had small, bead-like scales
The single known skeleton of Carnotaurus is so complete that even delicate skull bones and ribs were perfectly preserved
Carnotaurus had forward-facing eyes like a modern bird of prey, giving it excellent binocular vision for hunting

Carnotaurus in Popular Culture

Carnotaurus has appeared in the Disney film 'Dinosaur' as the main antagonist, and features in the 'Jurassic World Evolution' video games where players can create and manage their own specimens.

Discovery

Carnotaurus was first described by José Bonaparte in 1985. The original fossils were discovered at La Colonia Formation, Chubut Province, Argentina.

Carnotaurus FAQ

What did Carnotaurus eat?

Carnotaurus was a carnivore that hunted other dinosaurs. Its speed and powerful legs suggest it specialised in chasing down prey across open terrain, likely targeting medium-sized herbivorous dinosaurs that shared its South American habitat.

How big was Carnotaurus?

Carnotaurus measured about 8 metres in length and stood 3 metres tall at the hip. It weighed approximately 1.5 tonnes, making it a large but relatively lightweight predator built for speed rather than massive size.

When did Carnotaurus live?

Carnotaurus lived during the Late Cretaceous period, approximately 72.2 million years ago. This was near the end of the age of dinosaurs, just a few million years before the mass extinction event.

Where was Carnotaurus found?

The single known Carnotaurus skeleton was discovered in 1984 in the Chubut Province of Argentina, specifically in rocks of the La Colonia Formation. This is the only specimen of this species ever found.

How do you pronounce Carnotaurus?

Carnotaurus is pronounced 'CAR-no-TORE-us', with emphasis on the first and third syllables. The name breaks down as 'carno' meaning meat and 'taurus' meaning bull.

What does Carnotaurus mean?

Carnotaurus means 'meat-eating bull' in Latin, referring to both its carnivorous diet and the distinctive pair of horns above its eyes that give it a bull-like appearance.

How fast could Carnotaurus run?

Scientists estimate that Carnotaurus could reach speeds of up to 55 km/h, making it one of the fastest large theropods. Its long legs and lightweight build were perfectly adapted for high-speed pursuit hunting.

What type of dinosaur was Carnotaurus?

Carnotaurus was a theropod dinosaur, specifically a member of the Abelisauridae family. Theropods were bipedal, mostly carnivorous dinosaurs that included all the major predators of the Mesozoic era.

Was Carnotaurus related to birds?

Yes, as a theropod dinosaur, Carnotaurus was part of the same group that gave rise to modern birds. However, it belonged to a more primitive branch of theropods and was not directly ancestral to birds.

How many Carnotaurus fossils have been found?

Only one Carnotaurus skeleton has ever been discovered, but fortunately it is exceptionally well-preserved and nearly complete. This single specimen has provided scientists with detailed knowledge about this remarkable predator.

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