Final answer:
Prehistoric tools, like the atlatl or spear thrower, were made from materials such as wood, antler, ivory, and bone, with projectile tips often crafted from flint or bone. The blade tool industry marked an evolution in toolmaking with its efficient, long, sharp blades. The Clovis culture's Clovis points represented advanced stone spearheads used in conjunction with spears or darts.
Step-by-step explanation:
Prehistoric tools, including the atlatl, were commonly made of various materials such as stone, antler, ivory, and bone. The spear thrower, or atlatl, is a notable ancient tool, which served as an extension of the human arm, improving the range and power of spears or darts. This tool, found as old as 17,500 years, was typically made from wood or antler, with the projectile tips often crafted from flint or bone. During the Upper Paleolithic period, a shift towards the blade tool industry occurred with the production of thinner, more efficient blades from stone. Stone flakes were refined into blades that were longer and sharper, using a prepared-core technique.
In the Paleo-Indian era, the spear was the predominant weapon, and as technology advanced, lighter throwing spears were used in conjunction with atlatls to increase throwing distance. The Clovis culture developed the Clovis point, a particular type of finely worked stone spearhead. Apart from these, other artifacts included hand axes as well as various implements made of bone, aligned with the necessities of a nomadic lifestyle.
Tool materials evolved to include a broader selection, indicated by the Gravettian tool industry, where animal bones and tusks were used for both toolmaking and artistic purposes, such as in the creation of the Lion figurine.