About
Carcharodontosaurus was one of the largest predators ever to walk the Earth, dominating the river systems and coastal floodplains of North Africa during the mid-Cretaceous period. This massive shared its ecosystem with other giants including Spinosaurus, making the Kem Kem region one of the most predator-rich environments in prehistory. With a skull reaching up to 1.6 meters in length and jaws lined with blade-like teeth, Carcharodontosaurus was built for taking down large prey, likely including the huge sauropods that roamed the region.
The discovery history of this dinosaur reads like a tragedy of war and science. German paleontologist Ernst Stromer first described specimens from Egypt in the 1930s, only to have the original fossils destroyed during an Allied bombing raid on Munich in 1944. For decades, Carcharodontosaurus was known mainly from Stromer's detailed descriptions and illustrations. Then in 1995, American paleontologist Paul Sereno's team discovered a massive partial skull in Morocco's Kem Kem Beds, bringing this back into the scientific spotlight.
Carcharodontosaurus belonged to the , a family of giant predators that achieved global distribution during the Cretaceous. These dinosaurs represented a different evolutionary lineage from the tyrannosaurs that would later dominate the Northern Hemisphere. While tyrannosaurs evolved bone-crushing bite forces, carcharodontosaurids were slashers — their laterally compressed, serrated teeth were designed to inflict massive bleeding wounds, much like a great white shark.
Recent studies suggest Carcharodontosaurus may have had relatively limited compared to T. rex, relying more on its keen sense of smell and ambush tactics. The hot, humid environment it inhabited was crisscrossed by river systems teeming with giant fish and crocodilians, creating a competitive landscape where multiple apex predators somehow coexisted — a paleontological puzzle scientists are still working to understand.
Explore the anatomy
5 featuresThose terrifying teeth were flat like steak knives, with tiny saw-like edges running down both sides — perfect for slicing through flesh and causing massive bleeding. They looked so much like great white shark teeth that the name Carcharodontosaurus literally means 'shark-toothed lizard.'
The skull stretched about 1.6 metres long — as big as a Tyrannosaurus rex skull, but longer, lower, and full of large holes that kept it lightweight without making it weak. It's a completely different design from the thick, deep-snouted skull of T. rex, showing these predators evolved very different hunting styles.
Those arms were surprisingly small for such a massive predator, but they weren't useless — three fingers tipped with sharp, curved claws could have helped grip struggling prey. Still, the real killing power came from those enormous jaws.
The eye sockets were fairly small and pointed outward rather than forward, meaning depth perception wasn't great — not ideal for judging distances up close. But the part of the brain used for smell was huge, suggesting this hunter tracked prey by scent across ancient forested floodplains.
Supporting over 6,000 kg of predator required seriously strong legs, with thick, reinforced thigh bones built to carry that incredible weight. Computer models suggest it wasn't built for speed chases — more likely an ambush hunter that waited for the perfect moment to strike.
Where fossils were found
Kem Kem Group
Drâa-Tafilalet, Béchar · Morocco, Algeria
121.4–93.9 million years ago(27.5m year span)
Where Carcharodontosaurus Roamed
During the mid-Cretaceous, Carcharodontosaurus saharicus prowled the river deltas and coastal floodplains of northern Gondwana, in a region now known as the Sahara Desert but then characterized by lush, humid environments bordering the southern margins of the Tethys Sea. This apex predator dominated a landscape of winding river systems and mangrove-like wetlands, sharing its territory with giant crocodilians, massive fish, and fellow theropods in one of Earth's most diverse Cretaceous ecosystems.
Keep exploring the vault
Nigersaurus
Nigersaurus taqueti
Carcharodontosaurus saharicus was a large theropod predator from the same Elrhaz and related formations of North Africa during the mid-Cretaceous.
Ouranosaurus
Ouranosaurus nigeriensis
Carcharodontosaurus was a dominant predator in North African Cretaceous ecosystems.
Spinosaurus
Spinosaurus aegyptiacus
Both Carcharodontosaurus and Spinosaurus are known from the Kem Kem Beds of Morocco (Cenomanian, ~100-94 mya).
Giganotosaurus
Giganotosaurus carolinii
Both are carcharodontosaurids that independently evolved to become the apex predators of their respective continents (Africa and South America) during the mid-Cretaceous.
Concavenator
Concavenator corcovatus
Same family: Carcharodontosauridae
Acrocanthosaurus
Acrocanthosaurus atokensis
Same family: Carcharodontosauridae