It's some sort of creature from beyond our records; a Jurassic Fish.
only one source- an image from this months national geographic magazine on page 9
Stig was confused by the big lumbering beast in front of him, he decided that KFC would probably be a better option.Compression makes Stig hungry, full view or he'll start hunting kittens. :P
The extinct animal is the "Quagga" on the left.While researching my piece, I read that Quaggas, Ostriches and Wildebeest grazed together for the Quaggas hearing, ostriches sight and the wildebeests sense of smell.That is why the ears, eyes and nose are emphasised in the creation :)