Dinosaur blood cells detected in 115-million-year-old fossil

Scientists at Curtin University have found what they describe as the strongest evidence yet of blood cells in a dinosaur fossil dating back 115 million years. The fossil was from the right leg of Aratasaurus museunacionali, a meat-eating dinosaur, and contained microscopic structures resembling fossilised red blood cells. Researchers also detected heme, a molecule associated with haemoglobin.