King of Rabbits: Ancient, Gigantic Bunny Discovered   Live Science - March 21, 2011
The fossils of the giant were discovered on the island of Minorca off the coast of Spain, a fact reflected in the rabbit's scientific name, Nuralagus rex, the Minorcan king of the rabbits.

Easter Surprise: World's Oldest Rabbit Bones Found National Geographic - March 21, 2008

Fossil finds are rabbit forebears BBC - February 22, 2008
Fossil hunters have found the remains of ancient mammals that were related to today's rabbits and hares. The 53-million-year-old specimens consist of small ankle bones unearthed in Gujarat, central India. They belong to early examples of an animal group called lagomorphs, which today comprises hares, rabbits and a hamster-like animal called a pika.

Oldest fossil 'rabbit' unearthed BBC - February 17, 2005

The fossilized skeleton of a rabbit-like creature that lived 55 million years ago has been found in Mongolia, Science magazine reports. The fossil adds weight to the idea that rabbit-like creatures first evolved no earlier than 65 million years ago.