- Plesiosaurus mauritanicus Tooth
- Upper Cretaceous Age
- Phosphate Deposits
- Near Oed Zem, Khourigba, Morocco North Africa
- This is a nice tooth that measures approx. 1 3/4″ long and will come in the 4.25″ x 5.25″ Riker Mount with Label as Shown. Most of the teeth from the Phosphate Deposits are found broken and have to be glued back.. there may have been some crack repairs done to this tooth.. please look closely at the photos
The Plesiosauria or plesiosaurs are an order or clade of Mesozoic marine reptiles (marine Sauropsida), belonging to the Sauropterygia. Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rhaetian stage, about 205 million years ago. They became especially common during the Jurassic Period, thriving until their disappearance due to the Cretaceous–Paleogene extinction event at the end of the Cretaceous Period, about 66 million years ago. They had a worldwide oceanic distribution. Plesiosaurs had a broad flat body and a short tail. Their limbs had evolved into four long flippers, which were powered by strong muscles attached to wide bony plates formed by the shoulder girdle and the pelvis. The flippers made a flying movement through the water. Plesiosaurs breathed air, and bore live young; there are indications that they were warm-blooded.