The researchers inferred the ages of the engravings by using geological dating tools to determine how long ago the corresponding local kite structures were built. Desert Monoliths Reveal World’s Oldest Architectural Plans 2023-05-17T04:00:00Z
Precise geological dating of nearby rocks indicates that the fossils are 25.2 million years old, several million years older than any other example from either primate group. Fossils Indicate Common Ancestor for Old World Monkeys and Apes 2013-05-16T16:45:00.373Z