Third time period—Levallois core (IMAGE) Arizona State University Caption Levallois core, Late Pleistocene Algeria. Characteristic of 600 kya technologies (third period). Credit Watt, Emma. 2020. Levallois Core, Algeria. Museum of Stone Tools. Retrieved June 10, 2024. From: https://une.pedestal3d.com/r/JMVajqyz29 Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.