Prehistoric Shark
This page is the CodyCross answer for the clue below from World of Books, Group 296, Puzzle 3 (Digital Gallery).
Question is: Prehistoric Shark
and the answer is: MEGALODON
Word Meaning:
MEGALODON — A species of extinct shark that lived during the Miocene and Pliocene epochs (†Otodus megalodon).
Definitions from Wiktionary.