Which archaeological period is associated with tear drop shaped pebbles?

The archaeological period associated with tear drop-shaped pebbles is the Lower Palaeolithic, specifically the Acheulian phase. This period is characterized by the development of more sophisticated stone tools than those in earlier periods, including bifacial handaxes and flake tools. The tear drop shape, often referred to as a handaxe, is a hallmark of the Acheulian toolkit and signifies advanced manufacturing techniques. These tools were not only used for cutting but also for various other tasks like butchering animals and processing plant materials, reflecting the evolving cognitive abilities and adaptability of early hominins throughout this period.

The Upper Palaeolithic is known for a different set of tools and artwork, while the Mesolithic represents transitional tools and lifestyles between the Paleolithic and Neolithic. The Neolithic is characterized mainly by agriculture and pottery, and tool technologies from this time do not typically include the tear drop-shaped forms of earlier periods.