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A dolmen, also known as a portal tomb, portal grave, or quoit, is a type of single-chamber megalithic tomb, usually consisting of three or more upright stones supporting a large flat horizontal capstone. Most date from the early Neolithic period (4000 to 3000 BC). Dolmens were usually covered with earth or smaller stones to form a barrow, though in many cases that covering has weathered away, leaving only the stone "skeleton" of the burial mound intact.
25,000 Year Old Buildings Found In Russia? The Mysterious Dolmens And Megaliths Of The Caucasus In Russia, in the Caucasus mountains, there are hundreds of megalithic monuments. . All these megalithic dolmens you see below in the pictures are dated from 10,000 years to 25,000 years ago, according to the website Kykeon. Other archaeologists put the age of these megalithic structures at 4000 to 6,000 years old.
Mungo Man, discovered in 1974, was an early human inhabitant of the continent of Australia, who is believed to have lived between 68,000 and 40,000 years ago, during the Pleistocene epoch. The remains are the oldest anatomically modern human remains found in Australia to date.