1.85" Fossil Plesiosaur (Zarafasaura) Tooth In Rock - Morocco
This is a 1.85" long, well preserved tooth of the large dinosaur-aged, marine reptile Zarafasaura oceanis. The very tip of the tooth is missing. The tooth is in it's original position on the rock and has not been remounted.
Plesiosaurs where long-necked marine reptiles with four flippers that appeared in the Triassic and died out along with the dinosaurs at the end of the Cretaceous period. They reached quite larges sizes, some species as long at 17 meters, and caught slow moving prey. Plesiosaurs breathed air, and bore live young; there are indications that they were warm-blooded.