Fossilised skeletons of aerial and aquatic predators to go under the hammer

A plesiosaur skeleton will headline Sotheby’s Live Natural History Auction (Mary Altaffer/AP)

The fossilised skeletons of an aerial predator with a six-metre (20-foot) wingspan and an aquatic reptile with a snake-like neck will be auctioned in New York this month, Sotheby’s has announced.

The two creatures, both believed to be tens of millions of years old, will be sold on July 26.