Measuring Wear in Bone Tools

A UC Davis anthropologist has been building a catalog of high-resolution 3D models of bone tools worn by working various materials, all in the name of archaeology.

UC Davis graduate student Naomi Martisius with a rib bone she has shaped as a leather-working tool. Bone tools like these are often found in archaeological sites with the tips broken off.

Humans have been using bone tools for about two million years, and by about 100 thousand years ago were processing bones to make tools for specific purposes, such as working animal skins into leather. Both the way tools are made, and the way they are used, leave tiny marks on the bones that could give information about how these tools were prepared and used.