Study shows early human ancestors are a million years older than previously thought
An innovative method of fossil dating developed by Daryl Granger, professor of Earth, Atmospheric and Planetary Sciences in Purdue University's School of Science, has revealed that multiple remains of early human ancestors found at the Sterkfontein Caves site may be much older than previously thought.
In a study published on Monday, June 27, 2022, a team of scientists used space particles to analyze bones in the Sterkfontein Caves, part of a major fossil site in northern South Africa known as the "cradle of mankind".
Their findings indicated that some of these fossils are more than a million years old than previous beliefs, making them older than the famous remains of Australopithecus, known as "Lucy".
The study showed that all the remains of "Australopithecus" that were found in this cave, dated back to about 3.4 to 3.7 million years ago, instead of 2-2.5 million years ago as scientists previously assumed.
For decades, paleoanthropologists and other scholars have studied Sterkfontein and other cave sites in the Cradle of Humankind to shed light on human and ecological evolution over the past four million years.
The first discoveries in this cave began in 1924, and it was placed under the protection of "UNESCO" after finding thousands of fossils, including those of human ancestors.
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