Mosasaur (Thalassotitan) Teeth and Bones in Situ - Morocco

This 19" wide section of sandstone from the Phosphate Deposits of Morocco contains disarticulated mosasaur bones and teeth, along with an assemblage of additional fossils. Three of the teeth are rooted and are either pterygoid teeth of Thalassotitan atrox or teeth of Pluridens serpentis, with the fourth tooth (largest) being from Thalassotitan atrox. The rock also contains four mosasaur vertebrae, an Otodus shark tooth, a Serratolamna shark tooth, and fish vertebrae.

The specimen is natural and none of the fossils have been mounted within the rock. One of the mosasaur teeth is missing the apical half its crown. The sandstone has been stabilized and the back has been cut flat and coated in a clear epoxy for structural integrity of the specimen.

It comes with a display stand.

About Thalassotitan

Thalassotitan was one of the most formidable marine predators of the Late Cretaceous seas. Discovered in the phosphate deposits of Morocco and described in 2022, this giant mosasaur lived around 66 million years ago, just before the mass extinction that ended the age of dinosaurs. Its name—meaning “sea titan”—is fitting: Thalassotitan reached lengths of up to 30 feet and possessed a massive, powerfully built skull unlike that of most other mosasaurs.

What set Thalassotitan apart was its role as a true apex predator. Its broad jaws and robust, banana-shaped teeth were not designed for snatching small, slippery prey, but for crushing and tearing apart large animals. Fossil evidence suggests it preyed on sizable marine reptiles such as plesiosaurs, sea turtles, and other mosasaurs, placing it at the very top of the Late Cretaceous marine food web. In ecosystems already crowded with large predators, Thalassotitan stood out as a specialist hunter of other giants.

It comes from the massive phosphate deposits in the Oulad Abdoun Basin near Khouribga, Morocco. These deposits are mined for phosphate, one of Morocco's biggest exports. The fossils are collected as a byproduct of the mining operations, saving them from certain destruction by the rock crusher.
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DETAILS
SPECIES
Thalassotitan atrox & Pluridens serpentis?
LOCATION
Oulad Abdoun Basin, Morocco
FORMATION
Phosphate Deposits
SIZE
Specimen: 19 x 13.25"
ITEM
#334782
GUARANTEE
We guarantee the authenticity of all of our specimens.