1-2" Fossil Mosasaur Teeth In Rock - Morocco

These are authentic, fossil Mosasaur teeth from the Late Cretaceous (about 70 Million Years) phosphate deposits of Morocco. The teeth vary in size between 1-2" long but the majority are over 1 1/2". Nearly all of the teeth are of the genus Prognathodon, though there maybe some other species mixed in.

When they were prepared they were left partially embedded in the rock they were found in. Most have minor imperfections such as worn tips, repaired cracks or some missing enamel. The photos are representative of the teeth you will receive but don't picture the exact ones. We have larger, higher quality teeth for sale photographed individually here.

Mosasaurs are a family of enormous marine reptiles that truly dominated the seas 90 million years ago. They ruled 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.

Artists reconstruction of the mosasaur Prognathodon saturator.
Artists reconstruction of the mosasaur Prognathodon saturator.

Larger mosasaurs were the great leviathans of their time, extending 10–15m, or 33–49ft long. Hainosaurus holds the record for longest mosasaur, at a seemingly impossible 57ft. The smaller genera were still an impressive 10–20ft long. Mosasaurs probably evolved from semi-aquatic scaled reptiles which were 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 shark, and even other mosasaurs. Ammonites were especially crunchy mosasaur treats. They were abundant in the Cretaceous sea, and some Mosasaurs had specialized teeth for the job.

Mosasaurs probably lurked for an ambush, rather than hunt, possibly 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.
$9 $7
Quantity Discounts
3 to 9 Pieces
$7 $6
10+ Pieces
$6 $5
Mosasaur Teeth
Mostly Prognathodon
Late Cretaceous (~70 Million Years)
Oulad Abdoun Basin, Morocco
1-2" long