New research from the University of Washington challenges that perception. Researchers discovered a complete Quina technological system—a method for making a set of tools—in the Longtan site ...

Quina scrapers are typically quite thick and ... Dating many individual grains in a sample is important because tree roots, insects or other animals can mix younger sediments down into older ...

Quina lithic technology indicates diverse Late Pleistocene human dynamics in East Asia. Proceedings of the National Academy of Sciences , 2025; 122 (14) DOI: 10.1073/pnas.2418029122 Cite This Page : ...