At Olduvai Gorge natural erosion exposed a deep series of superimposed geological beds containing rich artefact and fossil assemblages spanning the last 1.8 million years. The sire ot famous as a rsult of excavations conducted there since 1951 under the direction of Mary Leakey and her husband, the late Louis Leakey. This volume, written largely by Mary Leakey herself, is the last of the reports and records the archaeological finds in the upper part of the Olduvai sequence from excavations carried out from the end of 1968 until 1971. The period covered here is from about 1.2 to 0.4 million years ago and th efinds include artefacts and faunal remains excavated from sites in beds II, IV na the Masek beds. The volume follows on from the archaeological record in beds I and II published in volume 3 of the series.

How fast is evolution, and why does it matter? The rate of evolution, and whether it is gradual or punctuated, is a hotly debated topic among biologists and paleontologists. This book compiles and compares examples of evolution from laboratory, field, and fossil record studies, analyzing them to extract their underlying rates. It concludes that while change is slow when averaged over many generations, on a generation-to-generation time scale, evolution is rapid. Chapters cover the history of evolutionary studies, from Lamarck and Darwin in the nineteenth century to the present day. An overview of the statistics of variation, dynamics of random walks, processes of natural selection and random drift, and effects of scale and time averaging are also provided, along with methods for the analysis of evolutionary time series. Containing case studies and worked examples, this book is ideal for advanced students and researchers in paleontology, biology, and anthropology.

One of the great enigmas of evolutionary biology has been how to treat animals of problematic systematic position. Many are known only as fossils, so this area has been of particular interest to palaeobiologists. This book represents a wide synthesis. It embraces not only general problems of animal classification of animals and new information on their molecular sequences that bear on their wider relationships, but also addresses more specific problems. These include details appraisals of both living and fossil groups. From the fossil record special emphasis is laid on examples from exceptionally preserved biotas that include the Burgess shale-type faunas of the Cambrian of south China and western North America, the Carboniferous Mazon Creek beds of Illinois, and the Jurassic Osteno beds of northern Italy. In addition, experimental studies of soft-patrt preservation in jellyfish are relevant to comparable preservation in the fossil record.

The ocean is the womb of all life on earth. It is beautiful and bizarre, violent and mysterious. Inhabited by a cast of characters stolen from fantasy, it's a dystopian world where dragons are real, and monsters are commonplace. Today's spectacular marine life has an ancient history preserved in stone - fossil strata that read like dramatic pages from the longest story ever told - tales of evolution, extinction, and surprising continuity. Having thrived a tumultuous 500 million years, this marine kingdom is now challenged by a new, arrogant and domineering life form. This book looks beyond the media focus on climate change and extinction to celebrate the continuity of ocean life. I'll take you on a personal journey to explore origins and destinies, from primordial soup to today's threatened oceans - towards a future we can influence. We always have a choice.

'An insightful book with sparkling wit and humour that will appeal to new and seasoned readers of palaeontology.' Dr Anjana Khatwa, TV presenter and Earth Scientist It is difficult to conceive of the vast scale of the history of life on Earth, from the very first living organisms sparking into life in hydrothermal deep-sea vents to the dizzying diversity of life today. The evolution of life is a sweeping epic of a tale, with twists and turns, surprising heroes and unlikely survivors. The Earth beautifully distils this complex story into a meaningful scale. In taking a closer look at 47 carefully selected organisms over fifteen periods in our planetary history, this book tells the whole story of life on Earth, and the interconnectedness that unites us through our ecosystems and planetary history. Prepare to be confounded by the ingenuity of evolutionary biologies, humbled by our own brief part in this epic history, and disquieted by our disproportionate impact on the world we call home. 'An extraordinarily accessible and informative biography of life seen through the many forms it has generated and preserved in stone, beautifully presented. From tales of the well-known stars of palaeontology like Archaeopteryx to the many-sided cultural stories of the earliest bee fossil, everyone will learn something new.' Thomas Halliday, bestselling author of Otherlands: A World in the Making

From The Land Before Time to Jurassic Park, images of fantastically large, long-necked, plant-eating dinosaurs have captured our imaginations. These are the sauropods: centerpieces of museums and gentle giants of the distant past. Imagine what it must have been like to crest a hill and see in the valley below not just one sauropod, but an entire herd, feeding its way across the landscape. The most massive land animals ever to have lived, sauropods roamed widely across the continents through most of the "Age of Dinosaurs" from about 220 to 65 million years ago. They reached incredible sizes, giving rise to the question: Why were they so big? Early guesses suggested that they gained protection from predators by virtue of their size, which also allowed them to reach the tops of trees in order to eat leaves and conifer needles. More recent hypotheses hold that they needed a long and complicated digestive tract due to their consumption of low-nutrient food sources: size was an offshoot of that need. Whatever the explanation, there is little doubt that natural selection produced something extraordinary when the Sauropoda diversified into a wide variety of species. This book combines majestic artwork and the best of paleontological research to resurrect the lives of sauropods. The Sauropod Dinosaurs shows how these amazing creatures raised and defended their young, traveled in groups, and interacted with the rich diversity of Mesozoic plants and animals. Beautiful enough to sit on the coffee table, the book also serves as the best reference available on these bygone giants. Anyone with a passion for dinosaurs or prehistoric life will cherish this once-in-a-generation masterpiece. The book includes the following features:* Over 200 full-color illustrations* More than 100 color photographs from museums, field sites, and collections around the world* Thoughtfully placed drawings and charts* Clearly written text reviewed by major sauropod researchers* Descriptions of the latest sauropod concepts and discoveries* A field guide to major groups of sauropods* Detailed skeletal reconstructions and anatomical restorations* A comprehensive glossary

Gideon Mantell and the Discovery of Dinosaurs is a scholarly yet accessible biography--the first in a generation--of a pioneering dinosaur hunter and scholar. Gideon Mantell discovered the Iguanodon (a famous tale set right in this book) and several other dinosaur species, spent over twenty-five years restoring Iguanodon fossils, and helped establish the idea of an Age of Reptiles that ended with their extinction at the conclusion of the Mesozoic Era. He had significant interaction with such well-known figures as James Parkinson, Georges Cuvier, Charles Lyell, Roderick Murchison, Charles Darwin, and Richard Owen. Dennis Dean, a well-known scholar of geology and the Victorian era, here places Mantell's career in its cultural context, employing original research in archives throughout the world, including the previously unexamined Mantell family papers in New Zealand.

A comprehensive treatment of primate paleontology. Profusely illustrated and up to date, it captures the complete history of the discovery and interpretation of primate fossils. The chapters range from primate origins to the advent of anatomically modern humans. Each emphasizes three key components of the record of primate evolution: history of discovery, taxonomy of the fossils, and evolution of the adaptive radiations they represent. The Primate Fossil Record summarizes objectively the many intellectual debates surrounding the fossil record and provides a foundation of reference information on the last two decades of astounding discoveries and worldwide field research for physical anthropologists, paleontologists and evolutionary biologists.

Using fossils to tell geological time, biostratigraphy balances biology with geology. In modern geochronology - meaning timescale-building and making correlations between oceans, continents and hemispheres - the microfossil record of speciations and extinctions is integrated with numerical dates from radioactive decay, geomagnetic reversals through time, and the cyclical wobbles of the earth-sun-moon system. This important modern synthesis follows the development of biostratigraphy from classical origins into petroleum exploration and deep-ocean drilling. It explores the three-way relationship between species of microorganisms, their environment and their evolution through time as expressed in skeletons preserved as fossils. This book is essential reading for advanced students and researchers working in basin analysis, sequence stratigraphy, palaeoceanography, palaeobiology and related fields.

A paleontology publication of the Scandinavian University Press The detailed written study, Upper Cambrian Rehbachiella and the Phylogeny of Brachiopoda and Crustacea, is part of an international series on stratigraphy and paleontology.

Understanding Fossils is the first introductory level palaeontology text which demonstrates the importance of fossils in geological and biological studies, particularly in understanding evolutionary patterns, palaeoenvironmental analysis, and stratigraphy. The book contains three parts. Part One explores several key concepts: the processes of fossil preservation, the determination of evolutionary patterns, ancient ecologies and use of fossils as stratigraphical tools. Part Two introduces the main fossil groups of value in these applied fields. Each group is described with reference to their most important characters, and each has summaries of classification, evolutionary history and applications. Part Three concentrates on the examination of important case histories which demonstrate the use of fossils in diverse practical examples. Evolutionary studies, palaeoenvironmental analysis and stratigraphical applications are documented using up-to-date examples supported by overviews of the principles.

Concern about the effects of global change on our planet's future has driven much research into the last few thousand years of earth history. In contrast, this volume takes a much longer viewpoint to provide a historical perspective to recent and future global change. Over 40 international specialists investigate the reaction of life to global environmental changes, from Cretaceous times to the turn of the century. During this time earth's climate has changed from a very warm, 'greenhouse' phase with no significant ice sheets to today's 'ice-house' world. A wide spectrum of animal, plant and protistan life is discussed, encompassing terrestrial, shallow-marine and deep-marine realms. Each chapter considers a particular taxonomic group, looking first at the general picture and then focusing on more specialized aspects such as extinctions, diversity and biogeography. This volume will form an invaluable reference for researchers and graduate students in paleontology, geology, biology, oceanography and climatology.

This book discusses procedures for handling information derived from the fossil record, and the application of this information to solving problems in geological succession and earth history. The main purpose of the book is to analyse shortcomings of the existing procedures, and to propose in their place an alternative set of data-handling arrangements of much greater simplicity and efficiency. The author argues that the procedures in current use are cumbersome and inefficient, and that, partly as a consequence of these information-handling methods, palaeontology has failed to make advances commensurate with technological improvements. In this book he proposes a system which could make possible the integrated use of every detail of geological information taken from the rocks. This would achieve better resolution in sequence correlation, in paleoecologic interpretation and in logging the course of evolution. Compatibility of style with existing records has been maintained to avoid any danger of loss of valuable data, and to simplify the process of reevaluating old records. The book will be of interest to all paleontologists, particularly those dealing with microfossils, and is intended to stimulate discussion and criticism of both the analysis and the proposals.

Coccolithophores are one of the primary algal groups in the oceans. They are the focus of recent research in many disciplines because of their importance in paleoenvironmental reconstruction and stratigraphy. The book starts with a history of coccolithophore studies, followed by chapters discussing coccolithophore biology, and the composition, function, and classification of their skeletal elements. At the heart of the book are taxonomic and atlas chapters with 140 scanning electron micrographs of coccolithophore species. Through a series of contributions from key workers in the field, the reader can then follow the path of the organisms from the ocean surface, through the water column to the ocean floor and the addition to the sedimentary rock record. The book concludes with a chapter on geochemical tracers, and the implication of these studies for stratigraphy and paleoenvironmental change.

With their spectacularly enlarged canines, sabertooth cats are among the most popular of prehistoric animals, yet it is surprising how little information about them is available for the curious layperson. What's more, there were other sabertooths that were not cats, animals with exotic names like nimravids, barbourofelids, and thylacosmilids. Some were no taller than a domestic cat, others were larger than a lion, and some were as weird as their names suggest. Sabertooths continue to pose questions even for specialists. What did they look like? How did they use their spectacular canine teeth? And why did they finally go extinct? In this visual and intellectual treat of a book, Mauricio Anton tells their story in words and pictures, all scrupulously based on the latest scientific research. The book is a glorious wedding of science and art that celebrates the remarkable diversity of the life of the not-so-distant past. -- Indiana University Press

Nothing fills us with a sense of wonder like fossils. What looks at first like a simple rock is in fact a clue that reveals the staggering diversity of ancient environments, the winding pathways of evolution, and the majesty of a vanished earth. But as much as one might daydream of digging a hole in the backyard and finding a Tyrannosaurus, only a few places contain these buried treasures, and when a scientist comes across a remnant of prehistoric life, great care must be taken. What do budding paleontologists need to know before starting their search? In Fantastic Fossils, Donald R. Prothero offers an accessible, entertaining, and richly illustrated guide to the paleontologist's journey. He details the best places to look for fossils, the art of how to find them, and how to classify the major types. Prothero provides expert wisdom about typical fossils that an average person can hope to collect and how to hunt fossils responsibly and ethically. He also explores the lessons that both common and rarer discoveries offer about paleontology and its history, as well as what fossils can tell us about past climates and present climate change. Captivating illustrations by the paleoartist Mary Persis Williams bring to life hundreds of important specimens. Offering valuable lessons for armchair enthusiasts and paleontology students alike, Fantastic Fossils is an essential companion for all readers who have ever dreamed of going in search of traces of a lost world.

Benthic foraminifera from the classic southern Caribbean region are presented in this book, to provide valuable information on ranges for biostratigraphers working in the region and beyond. Around 1000 of the more important species are assembled - from the Barremian (early Cretaceous) to the middle Miocene, approximately 120 to 10 million years before the present. The deeper water benthic species are tied in to the zonal scheme used in Plankton Stratigraphy, published by Cambridge University Press in 1985. The taxa have been brought up to date generically, and in many cases new comparisons between species have been made - the late Cretaceous and early Paleogene are particularly detailed. This information, together with detailed illustrations, will enable the taxa to be used stratigraphically.

The changes in the Earth's climate over the past 600 million years, from the Cambrian to the Quaternary, come under scrutiny in this book, first published in 1992. The geological evidence for ancient climates is examined, such as the distribution of climate-sensitive sediments. The Earth's climate has changed many times throughout the Phanerozoic. Thus in this book the climate history has been divided into Warm and Cool modes, intervals when either the Earth was in a former 'greenhouse' state with higher levels of atmospheric CO2 and polar regions free of ice, or the global climate was cooler and ice was present in high latitudes. The studies presented here highlight the complex interactions between the carbon cycle, continental distribution, tectonics, sea level variation, ocean circulation and temperature change as well as other parameters. In particular, the potential of the carbon isotope records as an important signal of the past climates of the Earth is explored. This book will be useful to all students and researchers with an interest in palaeoclimates and palaeoenvironments.

This book examines case studies of North American Quaternary mammalian evolution within the larger domain of modern evolutionary theory. It presents previously unpublished studies of a variety of taxa (xenarthrans, rodents, carnivores, ungulates) examined over several temporal scales, from a few thousand years during the Holocene to millions of years of late Pliocene and Pleistocene time. Different organizational levels are represented, from mosaic population variation, to a synopsis of Quaternary evolution of an entire order (Rodentia). In addition to specific case histories, the book includes purely theoretical and methodological contributions, for example, on the statistical recognition of stasis in the fossil record, new ways to calculate evolutionary rates, and the use of digital image analysis in the study of dental ontogeny. Perhaps the most important aspect of the studies reported in this book is that they span the time between the "ecological moment" and "deep time." Modern taxa can be traced back into the fossil record, and variation among extant taxa can be used as a control against which variation in the extinct ones can be understood.

During the transition from the Eocene to the Oligocene epochs, the mild tropical climates of the Paleocene and early Eocene were replaced by modern climatic conditions and extremes, including glacial ice in Antarctica. The best terrestrial record of the Eocene-Oligocene transition is found in North America, including the spectacular cliffs and spires of the Big Badlands National Park, in South Dakota. The first part of this book summarises the latest information in dating and correlation of the strata of late middle Eocene through early Oligocene age in North America, including the latest insights from argon/argon dating and magnetic stratigraphy. The second part reviews almost all the important terrestrial reptiles and mammals found near the Eocene-Oligocene boundary in the White River chronofauna, from the turtles, snakes and lizards to the common rodents, carnivores, artiodactyls, and perissodactyls. This is the first comprehensive treatment of these rocks and fossils in over sixty years and will be an invaluable resource to vertebrate palaeontologists, geologists, mammalogists and evolutionary biologists.

There is a growing interest in the biological implications of body size in animals. This parameter is now being used to make inferences and predictions about not only the habits and habitat of a particular species, but also as a way to understand patterns and biases in the fossil record. This valuable collection of essays presents and evaluates techniques of body-mass estimation and reviews current and potential applications of body-size estimates in paleobiology. Coverage is particularly detailed for carnivores, primates and ungulates, but information is also presented on marsupials, rodents and proboscideans. Body Size in Mammalian Paleobiology will prove useful to researchers and graduate students in paleontology, mammalogy, ecology and evolution programmes. It is designed to be both a practical handbook for researchers making and using body-size estimates, and a sourcebook of ideas for applying body size to paleontological problems and directions for future research.

This unique volume provides a comprehensive and up-to-date examination of all aspects of the biology of the Old World monkey genus, Theropithecus, which evolved alongside our human ancestors. The authors explore the fossil history and evolution of the genus, its biogeography, comparative evolutionary biology and anatomy, and the behaviour and socioecology of the living and extinct representatives of the genus. The parallels between the evolution of Theropithecus and early hominids are discussed. There are also two chapters of particular significance which describe how an innovative and exciting approach to the modelling of the causes of species extinction can be used with great success. This highly multidisciplinary approach provides a rare and insightful account of the evolutionary biology of this fascinating and once highly successful group of primates. Theropithecus will be of interest to researchers in the fields of primatology, anthropology, palaeontology, and mammalian behaviour, physiology and anatomy.

This volume fulfills a long-standing need of vertebrate paleontologists - whether amateurs attending their first excavation or preparators and curators - for a book that describes and explains modern paleontological techniques and practice. The authors of this volume are all exceptional technicians in their field and the book covers everything from field specimen collecting, through conservation methods, chemical preparation, molding, casting and painting, and mounting of vertebrate skeletons, to the final chapter devoted to the use of CT scans and X-ray methods. The book stems from the fact that, up until now, most preparatory techniques and skills have been passed down by example and demonstration, but they have rarely ever been standardized and set down in print. This book attempts to do this, and aims to enlighten workers on the most modern and successful methods that can be used in preserving and studying our fossil heritage.

When Darwin wrote his Origin of Species, one of his main concerns was with the perceived shortness of the fossil record of life. Until the work of J. William Schopf and his colleagues, much of this history was thought to be unknowable. This book, through a memoire of Schopf's personal recollections, documents astonishing discoveries revealing the first 85% of the history of life. These earliest periods of life on Earth emerge as a tale of individual and internationally collaborative exploration told by a scholar whose 60 years of research contributed to the recognition of the richness and diversity which forms the foundation of today's biodiversity. Key Features Documents, through personal narrative, a paradigm shift is the study of the earliest life Summarizes a fossil record largely unknown until relatively recently Addresses one of Darwin's most troubling concerns about his theory of natural selection Predicts future developments in the study of first life

Human life, and how we came to be, is one of the greatest scientific and philosophical questions of our time. This compact and accessible book presents a modern view of human evolution. Written by a leading authority, it lucidly and engagingly explains not only the evolutionary process, but the technologies currently used to unravel the evolutionary past and emergence of Homo sapiens. By separating the history of palaeoanthropology from current interpretation of the human fossil record, it lays numerous misconceptions to rest, and demonstrates that human evolution has been far from the linear struggle from primitiveness to perfection that we've been led to believe. It also presents a coherent scenario for how Homo sapiens contrived to cross a formidable cognitive barrier to become an extraordinary and unprecedented thinking creature. Elegantly illustrated, Understanding Human Evolution is for anyone interested in the complex and tangled story of how we came to be.