Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.0
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3740
Points per Word
0.000267
Page Count
32
Points per Page
0.03125
Description
Describes various smaller prehistoric creatures that lived alongside the dinosaurs, including early crocodilians, shrewlike mammals, spiders, dragonflies, primitive frogs, and flying reptiles.