Natalee Holloway Update: Bone Not from Teen, Could it be from Archaeological Site?

ORANJESTAD, Aruba (CBS) As the Aruba prosecutor's office released the official announcement that the bone found on a beach earlier this month does not belong to Natalee Holloway, I was exploring the Archaeological Museum of Aruba.

PICTURES: Joran van der Sloot: Natalee Holloway and Peru

There are 200 archaeological sites scattered throughout the island with pottery shards and human bones dating back hundreds of years. One such site is close to the hotel where the jaw bone was found. The site is an old Indian village inhabited by the Caquetio or Ceramic People from A.D. 900 to 1500.

As their name suggests, ceramic pottery played a large role in their lives. They would burn their dead and put the bones in large ceramic urns. The museum has a burial urn on display with human bones - including a jaw fragment with teeth intact.

Aruba's Prosecutors office did not give an explanation for where the jaw bone might have come from, but officials do say it was extremely weathered and held a very small amount of DNA.

Aruba's Solicitor General Taco Stein would not comment on whether the bone is old enough to have come from one of these archaeological sites. Stein says investigators will keep the bone in evidence and compare it to other missing persons.

Kelly Cobiella is a correspondent for CBS News.

COMPLETE COVERAGE OF JORAN VAN DER SLOOT ON CRIMESIDER