The local police prove unhelpful when a 500-pound dinosaur skull vanishes from a secret excavation on Sage's family's ranch, so Teddy and his friends conduct their own investigation.

The year is 1876. Among the warring Indian tribes and lawless gold-rush towns of America's western territories, two paleontologists pillage the Wild West. They are hunting for dinosaur fossils, while surveilling, deceiving and sabotaging each other in a rivalry that will come to be known as the Bone Wars. Into this treacherous territory plunges the arrogant and entitled Yale student William Johnson. Determined to survive a summer in the west to win...

Pinkerton's natural canine urge to chew on things while teething coincides with a chaotic visit to the museum's collection of dinosaur bones.

"When a boy and his dog go for a hike, the boy trips on a fossil, and it comes to life, revealing an ancient plant. The boy is so intrigued that he breaks two more fossils that come to life a dragonfly and a pteranodon. When these prehistoric creatures collide with present reality, the boy must figure out a way to make things go back to normal."--Amazon.

Upon finding a special stone, a child imagines the life of a pterosaur, the ancient flying reptile that lived, died, and was fossilized into that stone. Includes facts about fossils and how they are formed.

Professor Potts discovers some big old bones and puts them together in various ways until he is satisfied he has discovered a dinosaur that once ruled the earth.

"Scruff the dog is a stray who just loves to dig. It doesn't make him the most popular dog in town. But when he sniffs out a pile of old bones, he gets all the neighborhood dogs to help him. They uncover not one, not two, not three ... but 100 bones and make the most exciting dinosaur discovery of all time! Scruff's find wins him new friends and a new home."--Provided by publisher.

Helping the science museum unveil a new dinosaur skeleton, George notices that the specimen is missing one bone, so he teams up with the man with the yellow hat to retrace their steps and discover where the bone went missing.

When Mary Anning finds an unusual fossilized skeleton, she sets the religious fathers on edge, the townspeople to gossip, and the scientific world alight, but in the struggle to be recognized in the wider world, Mary and her friend Elizabeth Philpot discover that friendship is their greatest ally.