About Karen Carr Books by Karen Carr Pteranodon by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3 Woolly Mammoth by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3 Velociraptor by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3 Tyrannosaurus Rex by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3 Tylosaurus by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3 Triceratops by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3 Stegosaurus by (author) Gerry Bailey & Karen Carr Ages 8 Grades 3