When Dinosaurs Ruled the Earth

Through engaging stories and lively illustrations, readers will learn how dinosaurs adapted and evolved in order to survive during prehistoric times. Each book also introduces readers to related dinosaur species.

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Cover: Restless Iguanodon
Cover: Hook-nosed Einiosaurus
Cover: Alioramus on the Hunt
Title   Lexile GRL ATOS Format Qty
When Dinosaurs Ruled the Earth — Library Bound Set
When Dinosaurs Ruled the Earth — Paperback Set
  • Available in limited formats
  • Soon! Spring 2020
  • New! Fall 2019
  • New! Spring 2019
Title   Lexile GRL ATOS Format Qty
Alioramus on the Hunt 800 Q 5.5
Argentinosaurus, Giant of Giants 740 Q 4.9
Armored Ankylosaurus 900 Q 5.6
Fearsome Albertosaurus 670 Q 5.2
Hook-nosed Einiosaurus 800 Q 5.6
Rampaging Allosaurus 710 Q 5.2
Restless Iguanodon 850 Q 5.7
Spiky Stegosaurus 790 Q 5.3
Suchomimus Smiles like a Crocodile 890 Q 5.6
Three-horned Triceratops 800 Q 5.5
Towering Brachiosaurus 620 Q 5.2
Tyrannosaurus, King of the Dinosaurs 770 Q 5.4
  • Available in limited formats
  • Soon! Spring 2020
  • New! Fall 2019
  • New! Spring 2019