Carcharodontosaurus | Late Cretaceous “Shark-Toothed Dinosaur”

Carcharodontosaurus was a giant carnivore theropod, roaming Earth during the Late Cretaceous. This remarkable creature whose name means “shark-toothed lizard” was a sight to behold, rivaling even than the infamous T-Rex in size. Its existence provides us with a unique window into the past and offers insights into a world that was dramatically different from our own.

Key Facts

Carcharodontosaurus Taxonomy and Timeline

This dinosaur’s name comes from Carcharodon, the genus of the great white shark (from the Greek “karcharos,” meaning “jagged” or “sharp,” and “odōn,” meaning “tooth”), plus “sauros,” meaning “lizard.” In essence, Carcharodontosaurus translates to “shark-toothed lizard,” a fitting name for a carnivore with blade-like, serrated teeth.

This carnivorous dinosaur belongs to the Theropod group, specifically the Carcharodontosauridae family. There are two known species of this dinosaur: Carcharodontosaurus saharicus and Carcharodontosaurus iguidensis.

The timeline of Carcharodontosaurus is quite fascinating. This dinosaur lived during the Late Cretaceous period, specifically the Cenomanian stage. This means that Carcharodontosaurus roamed the earth between about 100.5 and 93.9 million years ago.

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Discovery & Fossil Evidence

The first evidence of this dinosaur was discovered in 1924 in Algeria, Africa by French paleontologists Charles Depéret and Justin Savornin. They found two teeth that had unique characteristics that led them to describe a new taxon. The teeth were initially attributed to a species they named Megalosaurus saharicus.

Later, more complete Carcharodontosaurus fossils were found in various locations including Morocco, Niger, and Tunisia. These finds have helped to paint a more comprehensive picture and contributed to our understanding of its physical characteristics.

Carcharodontosaurus Size and Description

Before we delve into the specifics, let’s take a moment to appreciate the sheer magnitude of Carcharodontosaurus. It was a large, almost giant theropod. Theropoda is a group of dinosaurs characterized by their hollow bones and three-toed limbs, where you find m,ost of the famous dinosaur predators.

Its body was built for hunting, as seen by its long, muscular tail for balance, powerful hind limbs for chasing down prey, and short but robust arms equipped with sharp claws.

The head was massive, housing its most distinctive feature: its teeth. These were long, serrated, and incredibly sharp, perfect for tearing into the flesh of its unfortunate victims. As for its skin, no direct evidence exists but it’s generally believed that it was covered in scales like many theropods.

Size and Weight of Type Species

This was one of the largest carnivorous dinosaurs that ever lived. It is believed to have reached lengths upwards of 49 feet, and stood 14 feet tall. Estimates of its weight vary a bit, but they are in the range of 6 to 15 tons.

These figures, while impressive, should be taken with a grain of salt as they are based on extrapolations from incomplete fossil evidence. Nonetheless, there’s no denying that Carcharodontosaurus was a colossal creature and a true testament to the awe-inspiring scale of life in the Late Cretaceous period.

The Dinosaur in Detail

Carcharodontosaurus was a creature perfectly adapted to its environment and role as a top predator. Its most striking feature was, of course, its teeth. These were not just sharp; they were designed for maximum efficiency in tearing flesh, allowing it to feast on the abundant herbivorous dinosaurs of its time.

But the teeth were not the only remarkable feature of Carcharodontosaurus. Its skull was uniquely designed with a series of fenestrae or openings that reduced weight while providing space for muscle attachment. This design allowed for a large, powerful jaw without the need for a heavy, cumbersome skull.

It also had a robust and muscular body with a long tail that helped it maintain balance while running at high speeds. Its hind limbs were powerful and built for speed while its smaller forelimbs were equipped with sharp claws for gripping prey. These features were combined with its keen senses and predatory instincts and made it a formidable hunter.

Carcharodontosaurus in its Natural Habitat

This carnivore occupied a world vastly different from our own. The Late Cretaceous period was a time of warm climate and high sea levels. The landscape of Africa and South America was dominated by flowering plants—a relatively new development in Earth’s history—and the first true birds were taking to the skies.

As a carnivore, this dinosaur was at the top of the food chain. Its diet likely consisted of large herbivorous dinosaurs. Its sharp teeth and powerful jaws would have made short work of any prey unlucky enough to be caught. It was bipedal and moved on two powerful hind limbs. This as well as its long tail for balance would have made it a fast and agile predator capable of chasing down even the swiftest of prey.

It was not the only large predator in its environment. Fossils of this dinosaur have been found in the same rocks as those of Spinosaurus in Morocco’s Kem Kem Group.

Interesting Points about Carcharodontosaurus

Contemporary Dinosaurs

This apex predator shared its world with a fascinating group of contemporaries. In the Kem Kem Group of Morocco, home of the Carcharodontosaurus saharicus neotype, these included Spinosaurus, Deltadromeus and Rebbachisaurus. In the Echkar Formation of Niger, Carcharodontosaurus iguidensis shared its rocks with the abelisaurid Rugops.

Spinosaurus was the other giant predator of the Kem Kem Group. It is one of only three dinosaurs from these beds known from an associated partial skeleton. The other two are the theropod Deltadromeus and the sauropod Rebbachisaurus.

Rugops is known from the Echkar Formation of Niger, the same formation that yielded Carcharodontosaurus iguidensis. It was a hornless abelisaurid, known from a skull about 95 million years old.

List of All Dinosaurs

We have created a list of all dinosaurs we have covered here, sorted across the seven main groups of dinosaurs. We also include information about their type of diet, (omnivore, herbivore or carnivore) and the time they lived.

Frequently Asked Questions

Sources

Featured Image Credit: Fred Wierum, CC BY-SA 4.0, via Wikimedia Commons