The 25,000-Year-Old Teeth That Just Rewrote The History Of Human Drug Use

This long record of excavation and study at the site means that the stratigraphic context for the Maros-LBB-1a specimen is well-established.

The dating methods that place the jaw fragment in the 16,000 to 25,000 year range are supported by the broader stratigraphic and chronological framework developed through years of work at the site.

Sulawesi’s geological situation — part of the Wallacea, the zone of islands that separates the Asian and Australian biological realms — has maintained its island status through all the sea-level changes of the Pleistocene.

Unlike the continental shelves of Sundaland (the mainland Southeast Asian landmass that connected the western Indonesian islands during glacial maxima), Sulawesi was never connected to the mainland.