Dinosaurs were a group of reptiles that lived on Earth millions of years ago. They were some of the largest animals to ever roam the planet, with some species growing to be as tall as a two-story building. Dinosaurs first appeared during the Mesozoic Era, which is sometimes referred to as the "Age of Reptiles." This era lasted from about 252 million years ago to 66 million years ago and was divided into three periods: the Triassic, Jurassic, and Cretaceous periods. During the Triassic period, the earliest dinosaurs evolved from smaller reptiles. These early dinosaurs were not very large, and they were not the dominant animals on Earth at the time. However, during the Jurassic and Cretaceous periods, dinosaurs became much larger and more diverse.

Travel back to the time when the mighty dinosaurs ruled the earth. The Age of Dinosaurs began about 250 million years ago. In the beginning they were quite small but over time they evolved into the varied and fascinating creatures that captivate our imaginations today. What we know about dinosaurs is evolving, too! We've learned that some dinosaurs were good parents, that dinosaurs could grow new teeth when old ones fell out, and that most dinosaurs walked on two legs. We've even discovered that birds are modern relatives of dinosaurs!

Come along with Ackerley the Acanthostega to visit the Triassic and Jurassic periods, 203-145 million years ago. Watch the first dinosaurs appear. See them grow in size and numbers to dominate on land, in the air, and in the oceans. Discover the facts, fossils, and fun science behind Earth's earliest dinosaurs, as well as flying reptiles, mighty sea beasts, and the first birds. This second part of the exciting story of life on Earth unfolds through amazing lifelike illustrations and fascinating diagrams, all narrated by a friendly prehistoric guide.

We could blame everything that happened on Marco. He was the one who heard about the downed submarine. He was the one who thought we should check it out. And everyone knows that if Marco's up to a challenge, I'm definitely there.Everything was going fine. Until the explosion. An explosion that blew us millions of years back in time, to the age of dinosaurs.Now Tobias, Cassie, Marco, Ax, Jake and I are fighting for our lives with every step we take. But that's not our biggest problem. Our biggest problem is we have no idea how to get back to our own time ...

Travel back in time to when dinosaurs ruled the earth -- facts, pictures, quizzes.

What can long-dead dinosaurs teach us about our future? Plenty, according to paleontologist Kenneth Lacovara, who has discovered some of the largest creatures to ever walk the Earth. By tapping into the ubiquitous wonder that dinosaurs inspire, Lacovara weaves together the stories of our geological awakening, of humanity’s epic struggle to understand the nature of deep time, the meaning of fossils, and our own place on the vast and bountiful tree of life. Go on a journey––back to when dinosaurs ruled the Earth––to discover how dinosaurs achieved feats unparalleled by any other group of animals. Learn the secrets of how paleontologists find fossils, and explore quirky, but profound questions, such as: Is a penguin a dinosaur? And, how are the tiny arms of T. rex the key to its power and ferocity? In this revealing book, Lacovara offers the latest ideas about the shocking and calamitous death of the dinosaurs and ties their vulnerabilities to our own. Why Dinosaurs Matter is compelling and engaging—a great reminder that our place on this planet is both precarious and potentially fleeting. “As we move into an uncertain environmental future, it has never been more important to understand the past.”

"THE ULTIMATE DINOSAUR BIOGRAPHY," hails Scientific American: A thrilling new history of the age of dinosaurs, from one of our finest young scientists. "A masterpiece of science writing." —Washington Post A New York Times Bestseller • Goodreads Choice Awards Winner • A BEST BOOK OF THE YEAR: Smithsonian, Science Friday, The Times (London), Popular Mechanics, Science News "This is scientific storytelling at its most visceral, striding with the beasts through their Triassic dawn, Jurassic dominance, and abrupt demise in the Cretaceous." —Nature The dinosaurs. Sixty-six million years ago, the Earth’s most fearsome creatures vanished. Today they remain one of our planet’s great mysteries. Now The Rise and Fall of the Dinosaurs reveals their extraordinary, 200-million-year-long story as never before. In this captivating narrative (enlivened with more than seventy original illustrations and photographs), Steve Brusatte, a young American paleontologist who has emerged as one of the foremost stars of the field—naming fifteen new species and leading groundbreaking scientific studies and fieldwork—masterfully tells the complete, surprising, and new history of the dinosaurs, drawing on cutting-edge science to dramatically bring to life their lost world and illuminate their enigmatic origins, spectacular flourishing, astonishing diversity, cataclysmic extinction, and startling living legacy. Captivating and revelatory, The Rise and Fall of the Dinosaurs is a book for the ages. Brusatte traces the evolution of dinosaurs from their inauspicious start as small shadow dwellers—themselves the beneficiaries of a mass extinction caused by volcanic eruptions at the beginning of the Triassic period—into the dominant array of species every wide-eyed child memorizes today, T. rex, Triceratops, Brontosaurus, and more. This gifted scientist and writer re-creates the dinosaurs’ peak during the Jurassic and Cretaceous, when thousands of species thrived, and winged and feathered dinosaurs, the prehistoric ancestors of modern birds, emerged. The story continues to the end of the Cretaceous period, when a giant asteroid or comet struck the planet and nearly every dinosaur species (but not all) died out, in the most extraordinary extinction event in earth’s history, one full of lessons for today as we confront a “sixth extinction.” Brusatte also recalls compelling stories from his globe-trotting expeditions during one of the most exciting eras in dinosaur research—which he calls “a new golden age of discovery”—and offers thrilling accounts of some of the remarkable findings he and his colleagues have made, including primitive human-sized tyrannosaurs; monstrous carnivores even larger than T. rex; and paradigm-shifting feathered raptors from China. An electrifying scientific history that unearths the dinosaurs’ epic saga, The Rise and Fall of the Dinosaurs will be a definitive and treasured account for decades to come. Includes 75 images, world maps of the prehistoric earth, and a dinosaur family tree.

A 2016 Outstanding Science Trade Book for Students K-12 (National Science Teachers Association-Children's Book Council The Early Cretaceous brings readers closer to prehistoric life than ever before. What it would be like to see a living, breathing dinosaur? The Early Cretaceous brings readers closer to prehistoric life than ever before. By combining the latest paleontological findings with highly detailed, intimate drawings of wildlife from the Early Cretaceous, readers will look into the eyes of some of the most fascinating creatures to ever inhabit the earth. Written and illustrated in the style of a naturalist's notebook, the viewer will be given a first-hand account of what it is like to stand alongside everything from the first birds to flying dinosaurs to some of the largest creatures ever to walk the earth. Through detailed illustrations and descriptive narrative, readers will discover how some dinosaurs survived polar blizzards, while others were able to pump blood five stories high to reach their brains. While many books on prehistoric life lump dinosaurs into the general timeline of the Mesozoic Period, no book currently dissects plant and animal life during one specific period. This allows the book to explore wildlife seldom featured in publications, many of them recent discoveries. The Early Cretaceous is backed by the research of one of paleontology's most acclaimed theorists, giving the book the most up to date scientific interpretation regarding animal behaviors, interactions, and recreations. "The illustrations and artistic layout are exceptionally beautiful. This is a book children will cherish, keep, and remember, and adults will be delighted to add to their collection." - Sylvia Czerkas, Author and Director The Dinosaur Museum, Utah "The illustrations are fantastic! The Nigersaurus 'grazing' is one of the nicest reconstructions of a rebbachisaurid I've ever seen." - Matthew C. Lamanna, Ph.D., Assistant Curator, Section of Vertebrate Paleontology, Carnegie Museum of Natural History "Fantastic artwork!" - Andrew Milner, Paleontologist and Curator at St. George Dinosaur Discovery Site "The art is amazing" - Phil Hore, National Dinosaur Museum, Australia "I *love* it! The style reminds me of a very cool sci-fi book that I had as a kid (and still have), Dougal Dixon's After Man: A Zoology of the Future. Dixon's book is a wonderful, lavishly illustrated introduction to evolutionary principles that helped set me on the path to becoming a professional paleontologist. I suspect your book is going to be similarly inspirational to many of today's aspiring scientists." - Matthew C. Lamanna, Ph.D., Assistant Curator, Section of Vertebrate Paleontology, Carnegie Museum of Natural History

With its tank-like body, jagged plates, and spikes, Stegosaurus is one of best-loved dinosaurs. Read this book to discover more about it and other fascinating dinosaurs!

Let’s Explore Dinosaurs! A fascinating book filled with incredible illustrations that trace the history and evolution of these prehistoric creatures. Young paleontologists will explore the amazing age of earth’s mightiest animals in this beautifully illustrated encyclopedia. BONUS: Includes a quiz to test your knowledge.