I checked this book out of the library after hearing about it on Reading Rainbow. After reading it to my 3 and 5 year olds, I realize that this was really not for their age-group. Too many conclusions must be drawn by looking at the pictures. It left them thinking, "I don't get it." Maybe I'll try again when they're older.

Miss Pym's class is in for a comic adventure beyond their wildest dreams. They've boarded the Rocky Mountain Unlimited, a mysterious train that's winding its way into the heart of prehistoric times. Join the class-and a horrified Miss Pym-as they scramble dinosaur egg for breakfast, go stegosaurus-back riding and pterodactyl gliding, and play soccer with their giant reptilian friends.