Pelycosaurs

By Susan H. Gray

Pelycosaurs were lizardlike creatures that inhabited Earth long before dinosaurs first appeared. From sail-backed Dimetrodon to tiny Archaeothyris, pelycosaurs shared characteristics of both mammals... This description may be from another edition of this product.

• Format: Library Binding
• Language: English
• ISBN: 1592964117
• ISBN13: 9781592964116
• Release Date: January 2005
• Publisher: Child's World
• Length: 32 Pages
• Weight: 0.65 lbs.
• Dimensions: 0.3" x 7.5" x 9.5"
• Age Range: 8 to 11 years
• Grade Range: Grades 3 to 6