Text Arranged to Form a Related Image

This page is the CodyCross answer for the clue below from Prehistory, Group 1242, Puzzle 4 (Geologic Time Scale).

Question is: Text Arranged to Form a Related Image

and the answer is: CALLIGRAM

Word Meaning:

CALLIGRAM — A word, phrase or longer text in which the typeface or the layout has some special significance.

Definitions from Wiktionary.