Dmanisi , site of paleoanthropological excavations in South Georgia , where a human jaw and teeth were discovered in 1991 that shared anatomical similarities with Homo erectus .
There is a in Dmanisi medieval village about 85 km southwest of Tbilisi on a promontory at confluence of the Mashavera and Phinezauri rivers. Archaeological exploration of the ruins began in the 1930s, but systematic excavations were not undertaken until the 1980s. Shortly thereafter, it was discovered that medieval pits or cellars had been dug into deposits containing prehistoric animal bones. In addition to the jawbone found in 1991, two skulls were recovered in 1999 that H. erectus characteristic of relatively small brains, flat foreheads, and low skull profiles had . Indeed the fossils are in their morphology similarly aged specimens East Africa .
Animal and human bones, as well as numerous rough stone picks and flakes, come from layers of ash and sandy sediment radiometrically mapped to 1.85 been dated millions of years ago. Other dating methods indicate that the mandible and skull must have been washed into the site about 1.7 million years ago. Dmanisi is thus one of the oldest human habitations in all of Eurasia, roughly the age of the oldest H. erectus corresponds to localities in East Africa, making the Dmanisi still crucial for the study of Dmanisi human evolution .
Community Controversies from . The facial features and dentition of the skull have several features with H. habilis together , and his braincase has been shown to have many features in H. erectus . The researchers who reported these results concluded that there was only one lineage in the genus Homo gave , which spread from Africa to other continents. in other words, their results suggest that the early development of Homo ( H. habilis , H. erectus and others) was not characterized by different species, but by different variations of the same species.