This video from England says about itself:
23 January 2016
A rare 165 million year old plesiosaur found in Peterborough will be studied by experts at a natural history museum to see if it is a previously unknown species.
The 5.5 metre long marine reptile, nicknamed ‘Eve’, was found at Must Farm quarry by palaeontologists from the Oxford Clay Working Group in November 2014. It is now being studied at the Museum and may prove to be a previously unknown species of plesiosaur.
Plesiosaurs were long-necked sea creatures that lived during the time of the dinosaurs. They died out 66 million years ago.
The specimen, discovered at a site owned by building product manufacturer Forterra, was first spotted by Oxford Clay Working Group member Carl Harrington who noticed a tiny fragment of bone sticking out of the clay. Over the course of four days, Carl and eight others dug up more than 600 pieces of fossilised bone. Carl then spent over 400 hours cleaning and repairing the specimen.
Carl Harrington said: “I’d never seen so much bone in one spot in a quarry. As I was digging amongst the wet clay, the snout of a plesiosaur started to appear in front of me. It was one of those absolute ‘wow’ moments – I was the first human to come face to face with this reptile.”
The newly-discovered plesiosaur had a 2.5 metre long neck, a barrel-shaped body, four flippers and a short tail. Its skull is still preserved inside a block of clay, and the painstaking task of removing it will now be undertaken at the Museum.
Dr James Neenan, a research fellow at the Museum, and Professor John Hutchinson from the Royal Veterinary College have CT-scanned the block to revealthe location of the bones inside. This will aid the removal of the skull from the clay.
On 27 January, visiting secondary school pupils will get the chance to see the plesiosaur find for themselves and to ask our Earth Collections manager Dr Hilary Ketchum about it.
“We are so excited that the plesiosaur has come to the Museum where it will be used for research, education and display,” says Dr Ketchum.
From the BBC:
Plesiosaur ‘sea monster’ bones put back together
13 February 2016
A Jurassic “sea monster” found in a quarry is taking shape as scientists carry out the painstaking task of putting together hundreds of bones.
A museum team has now put 165 million-year-old plesiosaur “Eve” together, although a few bones are missing and the skull is still embedded in clay.
They hope to put her on show but admitted she is too long and heavy for any of their current display cases.
Plesiosaurs were sea creatures that died out 66 million years ago.
The “fantastic fossil” was discovered at Must Farm quarry near Whittlesey, Cambridgeshire, by archaeologists from Oxford Clay Working Group.
It has an 8ft (2.5m)-long neck, a barrel-shaped body, four flippers and a short tail.
They named the creature Eve, as it was their first major find.
“We might never know,” palaeontologist Dr Hilary Ketchum said.
“It is very difficult to tell between males and females in the fossil record because soft parts are rarely preserved.
Dr Ketchum was tasked with putting together the “puzzle” of more than 600 pieces of bone uncovered by archaeologist Dr Carl Harrington and his team.
When various pieces were glued they were left with 232 bones plus the skull, which is still preserved in a block of clay.
Gradually, using the archaeologists’ notes and Dr Ketchum’s “own knowledge of plesiosaur anatomy”, Eve began to take shape.
A number of bones are missing including the thigh bones and parts of the tail, Dr Ketchum said.
The “delicate task” of removing the skull bones could take several months.
The clay block which encases them was CT-scanned to help scientists extract the bones without causing damage. So far they have exposed part of the lower jaw and the back of the skull near the neck.
Eventually they hope to release a time-lapse video of the process.
The Jurassic sediment lies under parts of England from as far west as Dorset and north to Yorkshire – taking in the Peterborough area which was Eve’s last resting place.
Eve’s upper and lower arm bones and wrist show some differences, as do parts of the neck vertebrae, Dr Ketchum said.
“It is possible this is because Eve is a new species, however, we still have lots more research to do before we can be sure.”
The museum hopes to put Eve on temporary display in the autumn, however, first they have one large problem to solve.
“Eve is the biggest and most complete plesiosaur specimen that we have. Our largest display case is just over four metres long, so it’s not quite big enough for Eve to be displayed entirely straight,” Dr Ketchum said.
“We might have to bend the neck around a little.”
Eve was donated to the Oxford museum by Cambridgeshire landowners Forterra.
66 million years ago plesiosaurs became extinct
76 vertebrae in their necks – mammals such as humans and giraffes have just seven
5mph (8.2km/h) the top swimming speed of the creature
6m the average length
660lb (300kg) the approximate weight
Dr Roger Benson/BBC Nature