Rhyming text in the pattern of "Over in the meadow" introduces dinosaurs and other prehistoric creatures and their mothers, from one trumpeting woolly mammoth to ten hatching maiasaurs. Includes a timeline and facts about the animals in the rhyme.

Geronimo and his friends participate in a treasure hunt set up by his rival and are determined to overcome all of its challenging obstacles, including tricky riddles and smelly dinosaurs.

Woolly mammoth siblings Oscar and Arabella enjoy being at Mammoth Academy, but Oscar is accused of stealing oranges and when he follows some mysterious tracks to find the real thief, he discovers humans living nearby.

Dusk, the world's first bat, must lead his colony to safety in a time of changing species.

The magic tree house transports Jack and Annie on a mission to the Ice Age where they encounter Cro-Magnons, cave bears, sabertooth tigers, and woolly mammoths.

When Ronnie's parents go on a business trip and leave her with Miss Lernin for the week, Ronnie is sure she's in for a big, dinosaur-size adventure. After all, her last trip with Miss Lernin involved real-life dinosaurs! So, when they end up at the aquarium's jellyfish exhibit, Ronnie is confused. Surely jellyfish aren't as cool as dinosaurs, right? Wrong! Determined to show Ronnie just how interesting prehistoric life was before the age of the dinosaurs,...

A young Tyrannosaurus rex with very poor eyesight loses his eyeglasses, resulting in chaos for himself and the creatures around him.