the microlith blade first appeared in the neolithic period
Microlith Laminar microliths date from at least the Gravettian culture or possibly the start of the Upper Paleolithic era, and they are found all through the Mesolithic and Neolithic eras. "Noailles" burins and micro-gravettes (See § Micro points, below.) indicate that the production of microliths had already started in the Gravettian culture.[1] This style of flint working flourished during the Magdalenian period and persisted in numerous Epipaleolithic traditions all around the Mediterranean basin. These microliths are slightly larger than the geometric microliths that followed and were made from the flakes of flint obtained ad hoc from a small nucleus or from a depleted nucleus of flint. They were produced either by percussion or by the application of a variable pressure (although pressure is the best option, this method of producing microliths is complicated and was not the most commonly used technique).[2]
Paleolithic The Paleolithic (or "Palaeolithic")/ˌpæliːəˈlɪθɪk/ age is a prehistoric period of human history distinguished by the development of the most primitive stone tools and covers roughly 95% of human technological prehistory.[1] It extends from the earliest known use of stone tools, probably by Homo habilis initially, 2.6 million years ago, to the end of the Pleistocene around 10,000 BP.[2]