It Could Be Button, Flat, Portobello
This page is the CodyCross answer for the clue below from Prehistory, Group 1246, Puzzle 3 (Archaeology).
Question is: It Could Be Button, Flat, Portobello
and the answer is: MUSHROOM
Word Meaning:
MUSHROOM — Any of the fleshy fruiting bodies of fungi typically produced above ground on soil or on their food sources (such as decaying wood).
Definitions from Wiktionary.