protolithic

pro·to·lith·ic

P0617100 (prō′tə-lĭth′ĭk)adj. Of, relating to, or characteristic of the very beginning of the Stone Age; Eolithic.

protolithic

(ˌprəʊtəʊˈlɪθɪk) adj1. (Historical Terms) of or referring to the earliest Stone Age2. (Archaeology) of or referring to the earliest Stone Age