1 1/4" to 1 1/2" Fossil Mosasaur Teeth

These are authentic fossil Mosasaur teeth from the Late Cretaceous (~70 Million Years) phosphate deposits near Khouribga, Morocco. Small Mosasaur teeth are quite common in these deposits and are collected by locals as a byproduct of the massive phosphate mining operations in the area.

There are teeth from several different species of Mosasaurs and they are almost all between 1 1/4 and 1 1/2 inches long. The teeth are in good condition they may have slight defects such as small chips. We have higher quality and larger Mosasaur teeth for sale individually.

Mosasaurs were a family of enormous marine reptiles that truly dominated the seas 90 million years ago, ruling during the last 20-25 million years of the Cretaceous period. With the extinction of the ichthyosaurs and decline of plesiosaurs, mosasaurs diversified to become prolific apex predators in nearly every habitat of the oceanic world.

Artist's reconstruction of the mosasaur Prognathodon saturator.
Artist's reconstruction of the mosasaur Prognathodon saturator.

Larger mosasaurs were the great leviathans of their time, extending 10–15 meters, or 33–49 feet long. Hainosaurus holds the record for the longest mosasaur at a seemingly impossible 57 feet. The smaller genera were still an impressive 10–20 feet long.

Mosasaurs probably evolved from semi-aquatic scaled reptiles, perhaps more similar in appearance to modern-day monitor lizards. They had double-hinged jaws and flexible skulls much like that of a snake which enabled them to gulp down their prey almost whole.

The gruesome unchewed contents of fossilized mosasaur guts have revealed a varied diet of sea birds, ammonites, smaller marine lizards, possibly sharks, and even other mosasaurs. Ammonites were especially crunchy mosasaur treats. They were abundant in the Cretaceous seas, and some mosasaurs had specialized teeth for the job.

Mosasaurs probably lurked for an ambush, rather than hunt, using their powerful tail flukes for extra thrust to dart out and swallow unsuspecting prey. Non-reflective, keeled scales may have been a great advantage to the mosasaur sneak-attack.

Mosasaurs breathed air and gave birth to live young. The bronchi leading to the lungs run parallel to each other, instead of splitting apart from one another as in monitors and other terrestrial reptiles. They were well-adapted to living in the warm, shallow, epicontinental seas of the period.

Although mosasaurs diversified and proliferated at a spectacular rate, their specialization is considered the source of their demise when marine systems collapsed at the end of the Cretaceous.
Quantity Discounts
3 to 9 Pieces
10+ Pieces
Mosasaur Teeth
Several Species
Late Cretaceous (~70 Million Years)
Khouribga, Morocco
Aproximately 1.25 to 1.5"