Pterosaurs: Rulers of the Skies in the Dinosaur Age

by Caroline Arnold

One hundred million years ago, the skies were filled with enormous flying reptiles. With wings spans up to nearly forty feet, pterosaurs were the dominant life form on earth. The relationship of these... This description may be from another edition of this product.

• Format: Library Binding
• Language: English
• ISBN: 0618313540
• ISBN13: 9780618313549
• Release Date: January 2004
• Publisher: Clarion Books
• Length: 40 Pages
• Weight: 1.25 lbs.
• Dimensions: 0.5" x 10.8" x 10.5"
• Age Range: 9 to 12 years
• Grade Range: Grades 4 to 7