Scientists could turn Jurassic Park fiction into fact after extracting what look like blood vessels and cells from a Tyrannosaurus rex, it was disclosed yesterday.

　　They have not ruled out the possibility of obtaining dinosaur DNA from the 70-million-year-old samples.

　　Until now the idea of DNA being preserved in ancient dinosaur fossils has not been taken seriously. But it formed the basis of Michael Crichton's novel Jurassic Park - made into a film by Steven Spielberg - in which scientists recreated dinosaurs from their DNA.

　　The highly preserved fossil skeleton of the T rex was unearthed in 2003 from a site in Montana in the United States.

　　Scientists examined one of the creature's thigh bones and noticed unusual features in the marrow cavity.

　　Dissolving the fossil mineral deposits with acid left a flexible, stretchy material threaded with what appeared to be transparent and hollow blood vessels.