the auction is open now and the fossil is being sold by hong kong-based experts at evolved that the dragon king , the fossilised item is said to be the world 's largest intact dinosaur skull , measuring 9.2 ft -lrb- 2.8 metres -rrb- long .
the rare lung wong fossil was first discovered in 1992 when rancher ray novakovich in 1997 .
the skull belonged to a male triceratops that lived 66 million years ago .