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Baryonyx

Close view of a tyrannosaur skull showing serrated teeth
Photo: WehaveaTrex, CC BY-SA 4.0, via Wikimedia Commons
Pronunciation
bare-ee-ON-iks
Name means
Heavy Claw
Diet
Carnivore
Posture
Quadrupedal
Period
Early Cretaceous
Length
30 feet (9.1 meters)
Height
6 feet (1.8 meters)
Weight
4,000 lbs (1,814 kg)

Order: Saurischia · Suborder: Theropoda

Discovered in southern England, Baronyx had a huge curved claw over 12 inches (30-cm) in length on each hand. Its long narrow jaws were equipped with small pointed teeth, twice as many as a theropod would normally have, which leads many to think that Baryonyx was a fisher. It might have wadedin shallow water to spear fish with its claws.

Mounted skeleton of Giganotosaurus, a giant carnivorous dinosaur
Photo: Rjcastillo, CC BY-SA 4.0, via Wikimedia Commons

More Cretaceous-period dinosaurs →

Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.

Frequently asked questions

What does Baryonyx mean?

The name Baryonyx means “Heavy Claw”. It is pronounced bare-ee-ON-iks.

When did Baryonyx live?

Baryonyx lived during the Early Cretaceous.

Was Baryonyx a carnivore or a herbivore?

Baryonyx was a carnivore.

How big was Baryonyx?

Baryonyx was about 30 feet (9.1 meters) long, around 6 feet (1.8 meters) tall, weighing up to 4,000 lbs (1,814 kg).

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