
Archaeologists in Georgia have found a 1.8 million-year-old tooth belonging to an early human species that they say cements the region as the earliest prehistoric human settlement in Europe, possibly anywhere outside of Africa.
The tooth was discovered near the village of Orozmani, about 100 km southwest of Georgia's capital Tbilisi, near Dmanisi, where human skulls date back 1.8 million years. They were found in the late 1990s and early 2000s.
Dmanisi's findings were the oldest such discovery anywhere in the world outside of Africa, and one that changed scientists' understanding of early human evolution and migration patterns.
The latest discovery at a site 20 km away provides yet more evidence that the mountainous region of the southern Caucasus was likely one of the first places early humans settled after migrating from Africa, experts said.
"Orozmani, along with Dmanisi, represents the oldest dispersal center of early humans in the world outside of Africa," the National Research Center of Archeology and Prehistory of Georgia said in announcing the discovery of the tooth on Thursday.
Giorgi Bidzinashvili, the scientific leader of the excavation team, said he believed the tooth belonged to a "cousin" of Zezva and Mzia, the names given to two nearly complete 1.8-million-year-old fossilized skulls found in Dmanisi.
"The implications, not only for this country, but for Georgia and the history of people who left Africa 1.8 million years ago are huge," said British archeology student Jack Peart, who first found the tooth in Orozmani.
"It solidifies Georgia as a really important place for paleoanthropology and human history in general," he told Reuters.
The world's oldest human fossils date back to about 2.8 million years ago - a partial jaw discovered in present-day Ethiopia.
Scientists believe that early humans, a hunter-gatherer species called Homo Erectus, likely began migrating out of Africa about two million years ago. Ancient tools dating back around 2.1 million years have been discovered in modern China, but Georgian sites are home to the oldest remains of early humans found outside of Africa.