A recent research based on the speed of dinosaurs reveal the traces of a terribly fast dinosaur. The study reveals meat-eating dinosaurs with three-toes might have run as fast as a car driving on city streets. This findings came while studying a 120 million year old fossilised foot print left behind by a carnivorous dinosaur in the northern Spain. Two track ways were preserved, one consists of 6 and another comprising 7 footprints. All them were three toed and about 1 foot long.
The scientists assume that the track ways were created by two kinds of dinosaurs in the same species. And they suspect they belongs to theropods. The finding point out that these dinosaurs sprinted on an average of 27.7 mph (44.6km/h) by analyzing two units of fossilized footprints that were found in La Rioja, Spain. It matches the highest record of Jamaican sprinter Usain Bolt. They evaluated the tracks of the footprints and came to understand that one dinosaur had sped up steadily and constantly and another quickly changed the speed.
Paleontologists use a certain series of numbers to calculate the speed of these extincted species. There are many factors to identify the running ability and speed of dinosaurs. They calculate the running speed based on the hip height from the footprints. The researchers say that the theropods weighing between 100 and 1000 k.g could have been the best runners based on the muscular performance. Their elongated legs are considered as another factor behind the speed. Many of the track ways found around the world estimate the dinosaurs were inclined to walking rather than running. The fastest running speed ever calculated based on the findings of footprints was during the Jurassic period, found in Utah at the speed of 55 kmph made by a theropod.
The researchers consider this is a rare study since they couldn’t find the track ways from many of the fossil records. The findings in Spain belongs to the fastest dinosaurs so far. But the palaeontologists were not able to explain the exact species of them. Instead, they stated that these imprints indicate a “medium-sized, non-avian theropod.” The team of researchers say that these kind of studies are improving our knowledge about an extinct species.