Plesiosaur Bone - Dorset England
The fossil was collected from the Portland Bay Area in Dorset England and dates from the Jurassic
The piece you will receive will be the exact piece pictured.
There is superb bone definition and stunning appearance.
Measures 3cm wide at its widest point.
I bought this material from the most respected fossil dealer on the Isle of Wight - Jurassic Jim
Boxed in the pictured Freestanding display frame which means it can be viewed from the front and back - and complete with a signed certificate of authenticity
This is not a commonly offered fossil - and is not often seen for sale
Plesiosaurs first appeared in the latest Triassic Period, possibly in the Rhaetian stage, about 203 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 were among the first fossil reptiles discovered. In the beginning of the nineteenth century, scientists realised how distinctive their build was and they were named as a separate order in 1835. The first plesiosaurian genus, the eponymous Plesiosaurus, was named in 1821. Since then, more than a hundred valid species have been described. In the early twenty-first century, the number of discoveries has increased, leading to an improved understanding of their anatomy, relationships and way of life.
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.