Adjective
English Wikipedia has an article on:AterianWikipedia
Aterian (not comparable)
Of or pertaining to the Atlas mountains; especially to a style of Paleolithic stone tool from this region.
For instance, in the Atlas Mountains of northwest Africa, the end of the Upper Paleolithic period coincides with the end of the Aterian tradition of producing laminar microliths, and deposits can be dated by the presence or absence of these artifacts. Source: Internet
Human settlement in Egypt dates back to at least 40,000 BC with Aterian tool manufacturing. Source: Internet