turtles as hopeful monsters origins and evolution life of the past

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Turtles As Hopeful Monsters

Author : Olivier Rieppel
ISBN : 9780253025074
Genre : Science
File Size : 59. 36 MB
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Where do turtles hail from? Why and how did they acquire shells? These questions have spurred heated debate and intense research for more than two hundred years. Brilliantly weaving evidence from the latest paleontological discoveries with an accessible, incisive look at different theories of biological evolution and their proponents, Turtles as Hopeful Monsters tells the fascinating evolutionary story of the shelled reptiles. Paleontologist Olivier Rieppel traces the evolution of turtles from over 220 million years ago, examining closely the relationship of turtles to other reptiles and charting the development of the shell. Turtle issues fuel a debate between proponents of gradual evolutionary change and authors favoring change through bursts and leaps of macromutation. The first book-length popular history of its type, this indispensable resource is an engaging read for all those fascinated by this ubiquitous and uniquely shaped reptile.

Dinosaurs And Other Reptiles From The Mesozoic Of Mexico

Author : Héctor E. Rivera-Sylva
ISBN : 9780253012715
Genre : Science
File Size : 51. 93 MB
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This overview of dinosaur discoveries in Mexico synthesizes current information about the geography and environment of the region during the Mesozoic when it was the western margin of the ancient continent of Pangea. The book summarizes research on various groups, including turtles, lepidosauromorphs, plesiosaurs, crocodyliforms, pterosaurs, and last but not least, dinosaurs. In addition, chapters focus on trackways and other trace fossils and on K/P boundary (the Chicxulub crater, beneath the Gulf of Mexico, has been hypothesized as the site of the boloid impact that killed off the dinosaurs). Dinosaurs and Other Reptiles from the Mesozoic of Mexico is an up-to-date, informative volume on an area that has not been comprehensively described until now.

In Pursuit Of Early Mammals

Author : Zofia Kielan-Jaworowska
ISBN : 9780253008244
Genre : Science
File Size : 62. 23 MB
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In Pursuit of Early Mammals presents the history of the mammals that lived during the Mesozoic era, the time when dinosaurs ruled the Earth, and describes their origins, anatomy, systematics, paleobiology, and distribution. It also tells the story of the author, a world-renowned specialist on these animals, and the other prominent paleontologists who have studied them. Zofia Kielan-Jaworowska was the first woman to lead large-scale paleontological expeditions, including eight to the Gobi Desert in Mongolia, which brought back important collections of dinosaur, early mammal, and other fossils. She shares the difficulties and pleasures encountered in finding rare fossils and describes the changing views on early mammals made possible by these discoveries.

Turtles Of The World

Author : Franck Bonin
ISBN : 0801884969
Genre : Nature
File Size : 39. 39 MB
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Franck Bonin, Bernard Devaux, and Alain Dupr have traveled the world together to study turtles in their natural habitats. In this complete guide to the world's nearly 300 species of turtles, the authors reveal intimate, little-known details of these intriguing reptiles in their native habitats: what they eat, where they live, how they behave, and when and where they lay their eggs.

Magnificent Mihirungs

Author : Peter F. Murray
ISBN : 0253342821
Genre : Science
File Size : 51. 7 MB
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Over millions of years, Australia's unique biodiversity has produced a large cabinet of curiosities. Among the weirder members of this group were the Mihirungs, members of the now extinct family Dromornithidae. Made up of several genera of flightless birds—among them one of the very largest birds that ever lived—the dromornithids ranged from 60-kilogram beasts, 1.5 meters tall, to giants twice that size, weighing nearly half a metric ton. They were, by orders of magnitude, the largest "geese" that ever lived. One species was comparable in size to the Ele-phantbird of Madagascar and the Giant Moa of New Zealand. This book is the first major study of this unique and highly diverse group. It aims to present as complete a synthesis as possible of current information about this fascinating family of birds.

Mesozoic Sea Dragons

Author : Olivier Rieppel
ISBN : 0253040116
Genre :
File Size : 45. 12 MB
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Mesozoic Sea Dragons is a fascinating, in-depth look at marine life from the Middle Triassic Period, drawing upon the best marine fossil record for that period in the world.

Amphibian And Reptile Adaptations To The Environment

Author : Denis Vieira de Andrade
ISBN : 9781482222067
Genre : Nature
File Size : 46. 97 MB
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Despite their diversity, amphibians and reptiles share many physiological traits, such as their dependence on external heat sources for body temperature regulation, that are of pivotal importance to their ability to cope with the environment. Considerable variation in physiological capabilities exists in these groups and often can be related to seasonal and geographic differences in environmental parameters. This book provides a comprehensive and integrative view of the interplay between physiology and behavior in amphibians and reptiles, leading to a better understanding of the subject. The book covers topics that have recently been in the spotlight for scientific research on the physiology, behavior, and conservation of amphibians and reptiles. It brings together recent information from a range of disciplines that address critical topics for understanding their biology. As these studies are scattered across articles in specialized journals, this book provides a single and expanded source summarizing such advancements. Amphibian and Reptile Adaptations to the Environment: Interplay Between Physiology and Behavior maintains a solid scientific basis for the biological topics covered. However, it presents the material in a clear and direct manner so that it is accessible even to non-biologists interested in the basic biology, behavior, and ecology of these animals as well as how these elements are connected to their conservation.

Terrestrial Conservation Lagerstatten

Author : Nicholas Fraser
ISBN : 1780460147
Genre : Science
File Size : 41. 8 MB
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Evolutionary biologists have long been concerned by the incompleteness of the fossil record. Although our knowledge of the diversity of life in 'deep time' has improved, many lineages of extant animals and plants still have only sparse fossil documentation. Even groups with 'hard parts' that render them suitable for fossilization often only have a limited record. Thus, although the fossil record is viewed as critical to the reconstruction of the evolutionary history of life, many biologists question its utility. Fortunately, discoveries of occurrences of exceptionally preserved fossils, known as conservation Lagerstatten (Konservat-Lagerstatten), shed much light on the past diversity of life. This book reviews selected conservation Lagerstatten for terrestrial animals and plants throughout the Phanerozoic worldwide, and includes sites in Asia, Europe, North America, and South America. The included essays demonstrate the enormous progress made in recent years, both in documenting the biodiversity of such extraordinary fossil deposits and also in elucidating the geological conditions for and biogeochemical processes behind the formation of conservation Lagerstatten. The book's contributions have been written by eminent paleontologists who have enlisted additional expertise to make each chapter as comprehensive as possible. The volume is edited by Nicholas C. Fraser of the National Museum of Scotland and Hans-Dieter Sues of the National Museum of Natural History at the Smithsonian Institution in Washington, DC. [Subject: Paleontology]

The Teeth Of Non Mammalian Vertebrates

Author : Barry K. B. Berkovitz
ISBN : 9780128028841
Genre : Science
File Size : 49. 9 MB
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The Teeth of Non-Mammalian Vertebrates is the first comprehensive publication devoted to the teeth and dentitions of living fishes, amphibians and reptiles. The book presents a comprehensive survey of the amazing variety of tooth forms among non-mammalian vertebrates, based on descriptions of approximately 400 species belonging to about 160 families. The text is lavishly illustrated with more than 600 high-quality color and monochrome photographs of specimens gathered from top museums and research workers from around the world, supplemented by radiographs and micro-CT images. This stimulating work discusses the functional morphology of feeding, the attachment of teeth, and the relationship of tooth form to function, with each chapter accompanied by a comprehensive, up-to-date reference list. Following the descriptions of the teeth and dentitions in each class, four chapters review current topics with considerable research activity: tooth development; tooth replacement; and the structure, formation and evolution of the dental hard tissues. This timely book, authored by internationally recognized teachers and researchers in the field, also reflects the resurgence of interest in the dentitions of non-mammalian vertebrates as experimental systems to help understand genetic changes in evolution of teeth and jaws. Features more than 600 images, including numerous high-quality photographs from internationally-recognized researchers and world class collections Offers guidance on tooth morphology for classification and evolution of vertebrates Provides detailed coverage of the dentition of all living groups of non-mammalian vertebrates

The Turtles Of Mexico

Author : John Legler
ISBN : 9780520956896
Genre : Science
File Size : 35. 13 MB
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The Turtles of Mexico is the first comprehensive guide to the biology, ecology, evolution, and distribution of more than fifty freshwater and terrestrial turtle taxa found in Mexico. Legler and Vogt draw on more than fifty years of fieldwork to elucidate the natural history of these species. The volume includes an extensive introduction to turtle anatomy, taxonomy, phylogeny, biogeography, and physiology. A key to the turtles of Mexico is included along with individual species accounts featuring geographic distribution maps and detailed color illustrations. Specific topics discussed for each species include habitat, diet, feeding behavior, reproduction, predators, parasites, growth and ontogeny, sexual dimorphism, growth rings, economic use, conservation, legal protection, and taxonomic studies. This book is a complete reference for scientists, conservationists, and professional and amateur enthusiasts who wish to study Mexican turtles.

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