Maxed Out!By: Ginjer L. Clarke Illustrator: Pete Mueller Series: Penguin Young Readers, Level 3 Packed with ancient giants! Dinosaurs aren't the only animals that roamed the earth during the prehistoric era. There was the Archelon, the largest turtle ever, measuring over 13 feet, and the Argentavis, the largest flying bird ever recorded, weighing in at over 140 pounds! Author Ginjer L. Clarke packs Maxed Out! with facts about humongous animals from this time