A site in north-east China contains a rich bed of fossil animals dating to 120-130 million years ago created by a volcano comparable to the one seen in Pompeii in Roman times. The eruption would have sent a pyroclastic flow across the landscape and killed animals immobilizing them instantly, as did Mount Vesuvius.
Some of these animals found include the first feathered dinosaurs, early mammals, fish and birds. These fossils will be able to shed light on evolution and life during this period were found in positions which suggest that they were moving as their limbs were flexed and spines extended. It was likely that the blast carried the carcasses and deposited them in the same area.