"The sample of teeth covered a chronological period extending over 10,000 years, from the early Neolithic period through to the early Islamic period," said a statement from Israel's Haifa University, one of the participants in the study.
After the middle and later period of the Neolithic Age,large jade articles replaced small ones.
McGovern and a team of scholars from China, Germany and the United States wrote a 2004 paper for PNAS that analyzed 9,000-year-old pottery jars found in a neolithic village site in Henan Province called Jiahu.
"Neolithic Man", etc.
