These fossilized footprints date back to the geologic period of time called Devonian (419.2 to 358.9 Mya). Take a look at these prehistoric footprints that were preserved by silt and turned to rock over millions of years. The Tetrapod Trackway is among the oldest evidence in the world of four-legged vertebrates walking on land. These early amphibians, of course, eventually evolved into mammals, and ultimately into humans.
For more information visit : https://www.fossilguy.com/topics/tetrapod-trackway/index.html