Prehistoric Period Lasted Around 3.4 Million Years

This page is the CodyCross answer for the clue below from Small World, Group 682, Puzzle 4 (Breakfast Cereal).

Question is: Prehistoric Period Lasted Around 3.4 Million Years

and the answer is: STONEAGE

Word Meaning:

STONE AGE — Alternative letter-case form of Stone Age.

Definitions from Wiktionary.

Prehistoric Period Lasted Around 3.4 Million Years - Small World CodyCross Answers | CodyCross Solutions