Dinosaur Periods

Scientists have long attempted to understand Earth’s past, and in service to that effort, they have divided the world’s history into eons, eras, periods, epochs, and ages. For example, the current eon is called the Phanerozoic Eon, which means “visible life”. This is the eon in which multicellular life has evolved and thrived. Before this, life was microscopic (single cells).

Scientists have long attempted to understand Earth’s past, and in service to that effort, they have divided the world’s history into eons, eras, periods, epochs, and ages. The Triassic Period: The History and Legacy of the Geologic Era that Witnessed the Rise of Dinosaurs looks at the development of the era, the extinction events that preceded it, and how dinosaurs began to evolve in the Late Triassic. You will learn about the Triassic Period like never before.

Ex-Park Chief Ranger Henry Shore has had his share of adventures and trials. But for many years he had a good life with his wife, Ann, and his daughter, Laura, being Chief Ranger at Crater Lake National Park. His life was perfect. Then the dinosaurs came. With his rangers, he fought the prehistoric beasts for years in his park; while outside the world also battled the malevolent creatures. He had one friend among the dinosaurs, little Oscar, who helped him, and the other humans, to fight and survive the dinosaur wars; during them he lost his daughter. These days Henry is recovering from the...

The early history of our planet covers such vast stretches of time that years, centuries, and even millennia become virtually meaningless. Instead, paleontologists and scientists who study geochronology divide time into periods and eras. The current view of science is that planet Earth is around 4.6 billion years old. The first four billion years of its development are known as the Precambrian period.

Chief Ranger Henry Shore once fought the lethal infestation of prehistoric dinosaurs in his beloved Crater Lake National Park. The first monster, which he called Godzilla, then the flying nightmares, the Gargoyles, then the small evil dinosaurs, and finally One-Eye and its twin. With his wife, Ann, his rangers, and his friends he eliminated the blood-thirsty beasts not only in his park, but over time in many other places. From the beginning of the dinosaur wars he was befriended by a small, intelligent telepathic dinosaur he affectionately named Oscar. Oscar was a benevolent creature who ...

Park Ranger Henry Shore has been fighting large rogue, blood-thirsty, dinosaurs for over a decade…and now, finally, they have been eradicated. Or have they? Henry works hard to keep the secret of his amazing little dinosaur friend, Oscar, and Oscar’s family, from the world; knowing the highly intelligent telepathic creatures must be protected for many reasons, especially because if the hostile aliens ever return, Oscar is the key to communicating with them. Last time that communication saved the world. But now, suddenly, more malevolent large dinosaurs have shown up near the northern ...

Encyclopedia of Dinosaurs will spark the curiosity of young listeners, taking them to a time when Tyrannosaurus rex ruled the land, pterodactyls flew in the skies, and packs of velociraptors prowled the jungles. Filled with up-to-date discoveries about prehistoric life, this tome includes comprehensive material about geography, history, and other scientific information from prehistoric times. Here is everything young listeners want to know about dinosaurs and their world-in one up-to-date family reference.