1.6" Fossil Plesiosaur (Zarafasaura) Tooth In Rock - Morocco

This is a 1.6" long, well preserved tooth of Plesiosaur (Zarafasaura oceanis), from the Upper Cretaceous 145-66 million years ago. Note the bone fragments contained in the sandstone.

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.

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An artists reconstruction of a pair of Plesiosaur. By Dmitry Bogdanov

This species of of Plesiosaur was redescribed from Plesiosaurus mauritanicus to Zarafasaura oceanis in a 2011 paper which can be found at:

A NEW SPECIMEN OF THE ELASMOSAURID PLESIOSAUR ZARAFASAURA OCEANIS FROM THE UPPER CRETACEOUS (MAASTRICHTIAN)OF MOROCCO
DETAILS
SPECIES
Zarafasaura oceanis
LOCATION
Khouribga, Morocco
FORMATION
Phosphate Deposits
SIZE
1.6" tooth, 3.7 x 2.9" rock
ITEM
#102106
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