Complex sentence: Nor were hand axes and bifacial items exclusive to the Lower Palaeolithic period in the Old World, they appear throughout the world and in many different prehistorical epochs, without necessarily implying an ancient origin.
Split into simpler sentences: Nor were hand axes and bifacial items exclusive to the Lower Palaeolithic period in the Old World. They appear throughout the world and in many different prehistorical epochs, without necessarily implying an ancient origin.