palaeolithic

(noun) second part of the Stone Age beginning about 750,00 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC. Synonyms: Paleolithic Age, Paleolithic, Palaeolithic.

(adj) of or relating to the second period of the Stone Age (following the eolithic). Synonyms: paleolithic. Example: "Paleolithic artifacts."