Measuring three centimetres (1.2 inches) across and with a whopping 16,000 individual lenses the fossilised eyes, from a huge shellfish-type creature called anomalocaris, were found in rocks on Australia's Kangaroo Island.

Anomalocaris could grow up to one metre long and were considered the "great white shark" of the Cambrian era, topping the ancient marine food chain, according to lead researcher John Paterson. -Amy Coopes