A paleolith is a relic of the
Paleolithic
era.
ancient manuscript,
antique,
antiquity,
archaism,
artifact, cave painting,
eolith,
fossil,
mezzolith,
microlith,
neolith,
petrification, petrified
forest, petrified wood,
petroglyph,
plateaulith,
relic,
reliquiae,
remains,
ruin,
ruins,
survival,
vestige