Triceratops

Before a T. rex can tower over museum visitors or a Triceratops can show off its huge horns, dinosaur fossils must first be painstakingly reconstructed, cleaned, fit together and even painted.

For U.S. restorationist Lauren McClain, the process is like putting together a giant 3D puzzle.

The world's biggest triceratops skeleton, known as "Big John," was sold for 6.6 million euros Oct. 21 to a private collector at a Paris auction house.

A Paris auction house will seek to sell in October the world's biggest known example of the dinosaur triceratops, known as "Big John", with the spectacular skeleton on show to the public beforehand, organizers said Aug. 31.

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The politicians made their appearances, along with all their promises at the 82nd Thessaloniki International Fair (TIF), and now it is time for the Tyrannosaurus Rex, the Triceratops, the Brachiosaurus and other creatures that roamed our planet tens of millions of years ago to take centre stage.

Dr. Michael Ryan, curator of vertebrate paleontology at the Cleveland Museum of Natural History, discusses his latest discovery of a new species of horned dinosaur from Alberta, Canada. The Wendiceratops pinhornensis looks like its successor – Triceratops. It had a frilly neck and horns over its eyes and ears that paleontologists believe were used in mating rituals.