World's Oldest Track Discovered

We do not know exactly when the animals left their first impression, but the oldest trace found dates back to between 551 million and 541 million years during the ediacaran period.

So about 100 million years before dinosaurs roamed Earth, 245 million years ago. This finding suggests that animals developed primitive wings and primitive legs earlier than thought.

The strange prehistoric trail shows two lines of tracks similar to a recurring foot impression say scientists. They found this in Dengying Formaton, a place in the Yangtze Gorges area in southern China. The tracks show a bilateral animal that is a creature with a two-dimensional symmetry that has a head on one end and on the other and a symmetrical right with the left has left this impression.

This sea animal had a pair of protrusions that lifted the body onto the ocean floor, which indicates the trail left by multiple feet. These tracks have been found in fossilized burrows, which indicates that the mysterious animal may have dug into the ocean's recent finds periodically in search of oxygen and food.

Both of them are known as traces and dens as fossils, a term that refers to fossilized remains that animals have left behind more like a fossilized slice than the fossilized fossil of animals themselves. These fossil records are the earliest evidence of animal appendix.

So far it was thought that bilateral animals such as arrropods and ringworms appeared during the Cambodian explosion between 541 and 510 million years, although some scientists suspected that these animals evolved earlier. According to scientists now, the discovery of tracks and dens shows that the animals with the appendix lived during the ediacaran period. / world.al