- Yabrudian is dominated by thick scrapers shaped by steep Quina retouch;
- Acheuleo-Yabrudian contains Yabrudian scrapers and handaxes
- Pre-Aurignacian/Amudian is dominated by blades and blade-tools
Determining the age period for the Acheulo-Yabrudian has been difficult as its major excavations occurred in the 1930s and 1950s before modern radiometric dating. The recently escavated Qesem and Tabun caves however suggest the oldest period is about 350 kyr and the most recent 200 kyr. This would make the Lower–Middle Palaeolithic transition rapid occurring at 215,000 BP within a 30,000 year period.
- Yabrud I in Syria
- Tabun Cave in Israel
- Zuttiyeh Cave in Wadi Amud in Israel, the location of ‘Galilee Man’
- Qesem Cave, the southernmost site yet found
- Jelinek, A.J., 1990. The Amudian in the context of the Mugharan Tradition at the Tabun Cave (Mount Carmel), Israel. In: Mellars, P. (Ed.), The Emergence of Modern Humans. Cornell University Press, Ithaca, pp. 81-90 ISBN 978-0-8014-2614-8
- Barkai, R; Gopher, A; Lauritzen, SE; Frumkin, A (2003). "Uranium series dates from Qesem Cave, Israel, and the end of the Lower Palaeolithic". Nature 423 (6943): 977–9. doi:10.1038/nature01718. PMID 12827199.