Bøger af Gregory S. Paul

A fully updated and expanded edition of the acclaimed, bestselling dinosaur field guide The bestselling Princeton Field Guide to Dinosaurs remains the must-have book for anyone who loves dinosaurs, from amateur enthusiasts to professional paleontologists. Now extensively revised and expanded, this dazzlingly illustrated large-format edition features nearly 100 new dinosaur species and hundreds of new and updated illustrations, bringing readers up to the minute on the latest discoveries and research that are radically transforming what we know about dinosaurs and their world. Written and illustrated by acclaimed dinosaur expert Gregory Paul, this stunningly beautiful book includes detailed species accounts of all the major dinosaur groups as well as a wealth of breathtaking images--skeletal drawings, "life" studies, scenic views, and other illustrations that depict the full range of dinosaurs, from small feathered creatures to whale-sized supersauropods. Paul's extensive introduction delves into dinosaur history and biology, the extinction of nonavian dinosaurs, the origin of birds, and the history of dinosaur paleontology, as well as giving a taste of what it might be like to travel back in time to the era when dinosaurs roamed the earth.Now covers more than 800 dinosaur species, including scores of newly discovered onesProvides startling perspectives on the famed Brontosaurus and TyrannosaurusReveals that the largest dinosaurs weighed as much as the biggest whales, and shows why that happenedFeatures hundreds of color and black-and-white drawings and figures, including life studies, scenic views, and skull and muscle drawingsIncludes color paleo-distribution maps and a color time lineDescribes anatomy, physiology, locomotion, reproduction, and growth of dinosaurs, as well as the origin of birds and the extinction of nonavian dinosaurs

"Ths group of animals comprises a complex of disparate groups including the dolphin/shark-like ichthyosaurs, manatee-like placodonts, long- and short-necked plesiosaurs, the mososaur lizards, marine turtles, and crocodilians. Sea reptile paleontology is a very active field in terms of new discoveries and research, so the guide is highly topical. For example, it is becoming increasingly apparent that the long-standing assumption that prehistoric oceanic reptiles had low metabolic rates, like reptiles, is incorrect. Instead, it is now thought that many of these beasts were endothermic, and that this evolutionary adaptation was far more widespread than formerly realized. Preserved soft tissues are showing that most mososaurs were not snake-like undulating swimmers but were compact-bodied, deep tailed and swift swimmers (as shown by the attached skeletals that show the development of tail fins over time). Studies of bone microstructure are revealing how some sea reptiles dove deep enough to be victims of the bends. Gigantic forms as big as whales have been uncovered. There are about 350 named sea reptile species. About 250 will be accurately illustrated"--

The most up-to-date and authoritative illustrated guide to the marvelous flying reptiles that dominated the skies of the Mesozoic for 160 million yearsOnce seen by some as evolutionary dead-enders, pterosaurs were vigorous winged reptiles capable of thriving in an array of habitats and climates, including polar winters. The Princeton Field Guide to Pterosaurs transforms our understanding of these great Mesozoic archosaurs of the air. This incredible guide covers 115 pterosaur species and features stunning illustrations of pterosaurs ranging in size from swallows to small sailplanes, some with enormous, bizarre head crests and elongated beaks. It discusses the history of pterosaurs through 160 million years of the Mesozoic-including their anatomy, physiology, locomotion, reproduction, growth, and extinction-and even gives a taste of what it might be like to travel back to the Mesozoic. This one-of-a-kind guide also challenges the common image of big pterosaurs as ultralights that only soared, showing how these spectacular creatures could be powerful flappers as heavy as bears.Features detailed species accounts of 115 different kinds of pterosaurs, with the latest size and mass estimatesWritten and illustrated by the acclaimed researcher and artist who helped to redefine the anatomy and flight performance of pterosaursCovers everything from pterosaur biology to the colorful history of pterosaur paleontologyIncludes dozens of original skeletal drawings and full-color life studies

A fully updated and expanded new edition of the acclaimed, bestselling dinosaur field guideThe bestselling Princeton Field Guide to Dinosaurs remains the must-have book for anyone who loves dinosaurs, from amateur enthusiasts to professional paleontologists. Now extensively revised and expanded, this dazzlingly illustrated large-format edition features some 100 new dinosaur species and 200 new and updated illustrations, bringing readers up to the minute on the latest discoveries and research that are radically transforming what we know about dinosaurs and their world.Written and illustrated by acclaimed dinosaur expert Gregory Paul, this stunningly beautiful book includes detailed species accounts of all the major dinosaur groups as well as nearly 700 color and black-and-white images-skeletal drawings, "e;life"e; studies, scenic views, and other illustrations that depict the full range of dinosaurs, from small feathered creatures to whale-sized supersauropods. Paul's extensively revised introduction delves into dinosaur history and biology, the extinction of nonavian dinosaurs, the origin of birds, and the history of dinosaur paleontology, as well as giving a taste of what it might be like to travel back in time to the era when dinosaurs roamed the earth.Now extensively revised and expandedCovers nearly 750 dinosaur species, including scores of newly discovered onesProvides startling new perspectives on the famed Brontosaurus and TyrannosaurusFeatures nearly 700 color and black-and-white drawings and figures, including life studies, scenic views, and skull and muscle drawingsIncludes color paleo-distribution maps and a color time lineDescribes anatomy, physiology, locomotion, reproduction, and growth of dinosaurs, as well as the origin of birds and the extinction of nonavian dinosaurs

Full of rich detail for the specialist but accessible to the intelligent lay reader, the book includes the author's own stunning illustrations and a technical appendix which provides information, for example, on body mass/wing dimension relationships and avian/dinosaurian metabolics.