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Rhinos in Nebraska: The Amazing Discovery of the Ashfall Fossil Beds
Par Alison Pearce Stevens. 2021
Twelve million years ago, rhinos, elephants, and camels roamed North America. They would gather at nearby watering holes—eating, drinking, and…
trying not to become someone else’s lunch. But one day, in what we now know as Nebraska, everything changed. The explosion of a supervolcano a thousand miles away sent a blanket of ash that buried these animals for millennia.Until 1953, when a seventeen-year-old farm worker made an unbelievable discovery.Rhinos in Nebraska tells the story of the Ashfall Fossil Beds, where more than two hundred perfectly preserved fossils have been found. Step into the past with author Alison Pearce Stevens and uncover the mysteries of Ashfall.Testing Character Evolution Models in Phylogenetic Paleobiology: A case study with Cambrian echinoderms (Elements of Paleontology)
Par David F. Wright, Peter J. Wagner, April Wright. 2021
Macroevolutionary inference has historically been treated as a two-step process, involving the inference of a tree, and then inference of…
a macroevolutionary model using that tree. Newer models blend the two steps. These methods make more complete use of fossils than the previous generation of Bayesian phylogenetic models. They also involve many more parameters than prior models, including parameters about which empiricists may have little intuition. In this paper, we set forth a framework for fitting complex, hierarchical models. The authors ultimately fit and use a joint tree and diversification model to estimate a dated phylogeny of the Cincta (Echinodermata), a morphologically distinct group of Cambrian echinoderms that lack the five-fold radial symmetry characteristic of extant members of the phylum. Although the phylogeny of cinctans remains poorly supported in places, this Element shows how models of character change and diversification contribute to understanding patterns of phylogenetic relatedness and testing macroevolutionary hypotheses.Dinosaur Tracks from Brazil: A Lost World of Gondwana (Life of the Past)
Par Giuseppe Leonardi, Ismar de Souza Carvalho. 2021
Dinosaur Tracks from Brazil is the first full-length study of dinosaurs in Brazil. Some 500 dinosaur trackways from the Cretaceous…
period still remain in the Rio do Peixe basins of Brazil, making it one of the largest trackways in the world. Veteran paleontologists Giuseppe Leonardi and Ismar de Souza Carvalho painstakingly document and analyze each track found at 37 individual sites and at approximately 96 stratigraphic levels. Richly illustrated and containing a wealth of data, Leonardi and de Souza Carvalho brilliantly reconstruct the taxonomic groups of the dinosaurs from the area and show how they moved across the alluvial fans, meandering rivers, and shallow lakes of ancient Gondwana. Dinosaur Tracks from Brazil is essential reading for paleontologists.Preparing Dinosaurs: The Work behind the Scenes
Par Caitlin Donahue Wylie. 2021
An investigation of the work and workers in fossil preparation labs reveals the often unacknowledged creativity and problem-solving on which…
scientists rely.Those awe-inspiring dinosaur skeletons on display in museums do not spring fully assembled from the earth. Technicians known as preparators have painstakingly removed the fossils from rock, repaired broken bones, and reconstructed missing pieces to create them. These specimens are foundational evidence for paleontologists, and yet the work and workers in fossil preparation labs go largely unacknowledged in publications and specimen records. In this book, Caitlin Wylie investigates the skilled labor of fossil preparators and argues for a new model of science that includes all research work and workers.Drawing on ethnographic observations and interviews, Wylie shows that the everyday work of fossil preparation requires creativity, problem-solving, and craft. She finds that preparators privilege their own skills over technology and that scientists prefer to rely on these trusted technicians rather than new technologies. Wylie examines how fossil preparators decide what fossils, and therefore dinosaurs, look like; how labor relations between interdependent yet hierarchically unequal collaborators influence scientific practice; how some museums display preparators at work behind glass, as if they were another exhibit; and how these workers learn their skills without formal training or scientific credentials. The work of preparing specimens is a crucial component of scientific research, although it leaves few written traces. Wylie argues that the paleontology research community's social structure demonstrates how other sciences might incorporate non-scientists into research work, empowering and educating both scientists and nonscientists.Dinosaurs: 10 Things You Should Know
Par Dr Dean Lomax. 2021
'A warp-speed tour of dinosaurs, with an expert guide' PROF. STEVE BRUSATTE, bestselling author of The Rise and Fall of…
Dinosaurs'A fun, speedy read for grown-ups who love dinosaurs - a great way to get into the subject' PROF. MICHAEL BENTON, author of The Dinosaurs Rediscovered---------Travel back to the prehistoric world and discover the most fascinating parts of the lives of Earth's most awe-inspiring creatures - the dinosaurs. Dr Dean Lomax brings these prehistoric creatures to life in ten bite-sized essays, written for people short on time but not curiosity. Making big ideas simple, Dean takes readers on a journey to uncover what makes a dinosaur a dinosaur, what dinosaurs ate, how they evolved, what caused them to go extinct, and more! Perfect for anyone fascinated by the dinosaur exhibits at museums, palaeontology and fans of Jurassic Park.Mesozoic Stratigraphy of India: A Multi-Proxy Approach (Society of Earth Scientists Series)
Par Santanu Banerjee, Subir Sarkar. 2021
This book envisages a multi-proxy approach using stable isotopes, geochemical proxies, magnetic susceptibility and associated biotic events for paleoclimatic and…
paleoenvironmental interpretations of the Mesozoic sedimentary record of India. Mesozoic rocks of India record abnormal sea level rise, greenhouse climate, intensified volcanism, hypoxia in seawater, extensive black shale deposition, and hydrocarbon occurrence. The Mesozoic has also witnessed mass extinction events, evolution of dinosaurs, and breakdown of the supercontinent Pangea and the formation of Gondwana. Although the Mesozoic geology of India has witnessed significant progress in the last century, literature survey reveals a huge gap in knowledge regarding sequence stratigraphy, chemostratigraphy and key geological events. A synthesis of sedimentological, paleontological and chemical data is included to presenting a comprehensive understanding of the Indian Mesozoic record to students, researchers and professionals.Evolutionary Cell Processes in Primates: Genes, Skin, Energetics, Breathing, and Feeding, Volume II (Evolutionary Cell Biology)
Par M. Kathleen Pitirri, Joan T. Richtsmeier. 2022
Many complex traits define the primate condition, including behaviors as fundamental as locomotion and traits as scrutinized as the dentition,…
and their study reveals dramatic evolutionary change across the primates. Genetic modifications are at the basis of these changes, but transformation of genetic information into phenotypes occurs at the level of the cell, which is the focus of this book. Contributors summarize novel methodologies to analyze the collective behavior of cells in forming tissues and organs influencing physiological functions and anatomical features that enable behaviors. Our goal is to review current knowledge and encourage others to adopt evolutionary cell biology to aid in deciphering the genotype-phenotype map that underlies the diversification of primates, human variation, and human evolution. The contributors to this book utilize advances in genetic analysis and visualization of cells and tissues and merge evolutionary developmental biology with evolutionary cell biology to address questions central to understanding human and primate evolution. Key Features Explores mechanisms underlying trait development, distribution, variation, and evolution, especially with respect to pigmentation, dental formulae, the skeleton, energetics, and temperature-related morphological variation Documents the advantages for anthropologists to work at the level of cells, focusing on how genes provide instructions for cells to make structure and how environment affects the behavior of cells Illustrates the role cell biology plays in pelage growth and pigmentation, facial morphology, melanin production in pigmentation, dental development and tooth loss, and energy expenditure Describes novel methodologies and techniques to analyze environment- and temperature-related influences on phenotypes Demonstrates how significant changes in life history occur at the level of the cell Related Titles Bianchi, L. Developmental Neurobiology (ISBN 978-0-8153-4482-7) King, G. R. Primate Behavior and Human Origins (ISBN 978-1-138-85317-1) Rhys Evans, P. H. The Waterside Ape: An Alternate Account of Human Evolution (ISBN 978-0-367-14548-4)Evolutionary Cell Processes in Primates: Bone, Brains, and Muscle, Volume I (Evolutionary Cell Biology)
Par M. Kathleen Pitirri, Joan T. Richtsmeier. 2022
Many complex traits define the human condition, including encephalization and bipedalism. The specific molecular signals and cellular processes producing these…
traits are the result of dramatic evolutionary change. At the same time, conservation of many of these developmental programs underlie both structure and function. Novel methodologies and techniques allow analysis of the collective behavior of cells, cell shapes, tissues, and organs. This volume demonstrates the essential role of cellular mechanisms in the evolutionary increase in the size and complexity of the primate brain. In addition, and concordant with encephalization, this book documents changes in the muscles and bones associated with the appearance of bipedalism. Genetic changes are the basis of these evolutionary changes, but transformation of genetic information into phenotypic outcomes occurs at the level of the cell, and this is the focus of the book. The goal is to encourage others to adopt evolutionary cell biology as a novel and necessary approach to the genotype-phenotype map of the diversification of primates, human variation, and human evolution. The contributors to this book utilize advances in genetic analysis, visualization of cells and tissues, and the merging of evolutionary developmental biology with evolutionary cell biology to address questions central to understanding the human and primate evolution. Key Features Explores mechanisms underlying trait distribution, dispersal, variation, and evolution through the direct testing of hypotheses especially with respect to patterns of encephalization, certain sensory modalities, and growth and life history specializations. Documents the advantages for anthropologists to work at the level of cells focusing on how genes provide instructions for cells to make structure and how environmental influences affect the behavior of cells. Illustrates the role cell biology plays with respect to encephalization, neocortical expansion, variation in facial morphology, locomotion, and dexterity. Describes novel methodologies and techniques allowing analysis of how the collective behavior of cells shapes tissues and organs. Related Titles Ripamonti, U., ed. Induction of Bone Formation in Primates: The Transforming Growth Factor-beta 3 (ISBN 978-0-3673-7740-3). Gordon, M. S., et al., eds. Animal Locomotion: Physical Principles and Adaptations (ISBN 978-0-3676-5795-6) Bianchi, L. Developmental Neurobiology (ISBN 978-0-8153-4482-7)Truth or Lie: Dinosaurs! (Step Into Reading)
Par Erica S. Perl, Michael Slack. 2019
Tyrannosaurus rex's closest living relative is the alligator, right? That's a LIE! The TRUTH is, the massive carnivore was actually…
more closely related to chickens!! Though this engaging early reader is 100% fun, 25% of it is FALSE! In a unique question-and-answer format, proficient readers are quizzed about dinosaurs to see if they can separate facts from "lies." The book's mascot--the Truth Sleuth--guides readers through this funny and fact-packed Step 3 Reader, which features photos and illustrations of dinosaurs and fossils, with funny, kid-appealing art by Michael Slack. Step 3 Readers feature engaging characters in easy-to-follow plots about popular topics, for children who are ready to read on their own.The Beginning of the Age of Mammals
Par Kenneth D. Rose. 2006
In the tradition of G. G. Simpson's classic work, Kenneth D. Rose's The Beginning of the Age of Mammals analyzes…
the events that occurred directly before and after the mysterious K-T boundary which so quickly thrust mammals from obscurity to planetary dominance. Rose surveys the evolution of mammals, beginning with their origin from cynodont therapsids in the Mesozoic, contemporary with dinosaurs, through the early Cenozoic, with emphasis on the Paleocene and Eocene adaptive radiations of therian mammals. Focusing on the fossil record, he presents the anatomical evidence used to interpret behavior and phylogenetic relationships. The life's work of one of the most knowledgeable researchers in the field, this richly illustrated, magisterial book combines sound scientific principles and meticulous research and belongs on the shelf of every paleontologist and mammalogist.Charles Darwin: The Concise Story of an Extraordinary Man
Par Tim M. Berra. 2008
Two hundred years after Charles Darwin's birth (February 12, 1809), this thoroughly illustrated, yet concise biography reveals the great scientist…
as husband, father, and friend. Tim M. Berra, whose "Darwin: The Man" lectures are in high demand worldwide, tells the fascinating story of the person and the idea that changed everything. Berra discusses Darwin’s revolutionary scientific work, its impact on modern-day biological science, and the influence of Darwin’s evolutionary theory on Western thought. But Berra digs deeper to reveal Darwin the man by combining anecdotes with carefully selected illustrations and photographs. This small gem of a book includes 20 color plates and 60 black-and-white illustrations, along with an annotated list of Darwin’s publications and a chronology of his life.The Eponym Dictionary of Mammals
Par Michael Watkins, Bo Beolens, Michael Grayson. 2009
Just who was the Przewalski after whom Przewalski's horse was named? Or Husson, the eponym for the rat Hydromys hussoni?…
Or the Geoffroy whose name is forever linked to Geoffroy's cat? This unique reference provides a brief look at the real lives behind the scientific and vernacular mammal names one encounters in field guides, textbooks, journal articles, and other scholarly works.Arranged to mirror standard dictionaries, the more than 1,300 entries included here explain the origins of over 2,000 mammal species names. Each bio-sketch lists the scientific and common-language names of all species named after the person, outlines the individual's major contributions to mammalogy and other branches of zoology, and includes brief information about his or her mammalian namesake's distribution. The two appendixes list scientific and common names for ease of reference, and, where appropriate, individual entries include mammals commonly—but mistakenly—believed to be named after people.The Eponym Dictionary of Mammals is a highly readable and informative guide to the people whose names are immortalized in mammal nomenclature.The Taphonomy of Echinoids: Skeletal Morphologies, Environmental Factors and Preservation Pathways (Elements of Paleontology)
Par James H. Nebelsick, Andrea Mancosu. 2021
The study of echinoid evolution, diversity, and ecology has always suffered from the fact that they are represented by taxa…
showing widely differing architectural designs of their multi-plated skeletons, inhabiting a large range of marine paleoenvironments, which result in highly varying taphonomic biases dictating their presence and recognition. This Element addresses the taphonomy of echinoids and includes: a general introduction to the morphological features of echinoids that play a role in their preservation; a review of processes which play an important role in the differential preservation of both regular and irregular echinoids including predation and transport; a summary of taphonomic pathways included in actualistic studies for recent sea urchins and then reconstructed for fossil taxa; and finally, a case study of the variation of echinoid taphonomy across a shelf gradient using the rich Miocene echinoid fauna of Sardinia.Collector's Guide to Fort Payne Crinoids and Blastoids (Life of the Past)
Par William W. Morgan. 2021
Collector's Guide to Fort Payne Crinoids and Blastoids is the first comprehensive guide for identifying the fossils of echinoderms from…
hundreds of millions of years ago, when North America was covered by a warm, equatorial sea. Crinoids and blastoids, echinoderms (the same family of marine animals to include starfish, sea urchins, and sand dollars) from the Fort Payne Formation in Kentucky, are rarely seen at gem, mineral, and fossil shows, nor are they regularly displayed at major museums. By combining high-quality color photographs and an accompanying descriptive text, William W. Morgan provides the first comprehensive identification guide to these fascinating fossils. Collector's Guide to Fort Payne Crinoids and Blastoids features photographs, often offering more than one view, of the best-quality specimens curated in the Smithsonian and other prominent invertebrate fossil museums. Morgan includes photographs that are unlabeled so that readers can test themselves to see whether they can differentiate some of the more subtle features that may be necessary for accurate identification.Tropical Arctic: Lost Plants, Future Climates, and the Discovery of Ancient Greenland
Par Jennifer McElwain, Marlene Hill Donnelly, Ian Glasspool. 2021
An illustrated visit to the tropical arctic of 205 million years ago when Greenland was green. While today’s Greenland is…
largely covered in ice, in the time of the dinosaurs the area was a lushly forested, tropical zone. Tropical Arctic tracks a ten-million-year window of Earth’s history when global temperatures soared and the vegetation of the world responded. A project over eighteen years in the making, Tropical Arctic is the result of a unique collaboration between two paleobotanists, Jennifer C. McElwain and Ian J. Glasspool, and award-winning scientific illustrator Marlene Hill Donnelly. They began with a simple question: “What was the color of a fossilized leaf?” Tropical Arctic answers that question and more, allowing readers to experience Triassic Greenland through three reconstructed landscapes and an expertly researched catalog of extinct plants. A stunning compilation of paint and pencil art, photos, maps, and engineered fossil models, Tropical Arctic blends art and science to bring a lost world to life. Readers will also enjoy a front-row seat to the scientific adventures of life in the field, with engaging anecdotes about analyzing fossils and learning to ward off polar bear attacks. Tropical Arctic explains our planet’s story of environmental upheaval, mass extinction, and resilience. By looking at Earth’s past, we see a glimpse of the future of our warming planet—and learn an important lesson for our time of climate change.Transylvanian Dinosaurs
Par David B. Weishampel, Coralia-Maria Jianu. 2012
At the end of the time of the dinosaurs, Transylvania was an island in what was to become southeastern Europe.…
The island's limited resources affected the size and life histories of its animals, resulting in a local dwarfism. For example, sauropods found on the island measured only six meters long, while their cousins elsewhere grew up to five times larger. Here, David B. Weishampel and Coralia-Maria Jianu present unique evolutionary interpretations of this phenomenon. The authors bring together the latest information on the fauna, flora, geology, and paleogeography of the region, casting these ancient reptiles in their phylogenetic, paleoecological, and evolutionary contexts. What the authors find is that Transylvanian dinosaurs experienced a range of unpredictable successes as they evolved.Woven throughout the detailed history and science of these diminutive dinosaurs is the fascinating story of the man who first discovered them, the mysterious twentieth-century paleontologist Franz Baron Nopcsa, whose name is synonymous with Transylvanian dinosaurs. Hailed by some as the father of paleobiology, it was Nopcsa alone who understood the importance of the dinosaur discoveries in Transylvania; their story cannot be told without recounting his.Transylvanian Dinosaurs strikes an engaging balance between biography and scientific treatise and is sure to capture the imagination of professional paleontologists and amateur dinophiles alike.The Eponym Dictionary of Reptiles
Par Michael Watkins, Bo Beolens, Michael Grayson. 2011
Who was Richard Kemp, after whom the Kemp’s ridley sea turtle is named? Is Wake’s Gecko named after Berkeley’s Marvalee…
Wake? Or perhaps her husband, David? Why do so many snakes and lizards have Werner in their name? This reference book answers these and thousands of other questions about the origins of the vernacular and scientific names of reptiles across the globe.From Agkistrodon piscivorus conanti, the Florida cottonmouth subspecies named for Roger Conant, to Xantusia, the night lizard genera namesake of John Xantus, this dictionary covers everyone after whom an extant or recently extinct reptile has been named. The entries include a brief bio-sketch, a list of the reptiles that bear the individual’s name, the names of reptiles erroneously thought to be associated with the person, and a summary of major—and sometimes obscure or even incidental—contributions made by the person to herpetology and zoology. An introductory chapter explains how to use the book and describes the process of naming taxa. Easy to use and filled with addictive—and highly useful—information about the people whose names will be carried into the future on the backs of the world’s reptiles, The Eponym Dictionary of Reptiles is a handy and fun book for professional and amateur herpetologists alike.Mammal Teeth: Origin, Evolution, and Diversity
Par Peter S. Ungar. 2011
Winner, 2010 PROSE Award for Excellence in the Biological Sciences. Professional and Scholarly Publishing division of the Association of American…
PublishersIn this unique book, Peter S. Ungar tells the story of mammalian teeth from their origin through their evolution to their current diversity.Mammal Teeth traces the evolutionary history of teeth, beginning with the very first mineralized vertebrate structures half a billion years ago. Ungar describes how the simple conical tooth of early vertebrates became the molars, incisors, and other forms we see in mammals today. Evolutionary adaptations changed pointy teeth into flatter ones, with specialized shapes designed to complement the corresponding jaw. Ungar explains tooth structure and function in the context of nutritional needs. The myriad tooth shapes produced by evolution offer different solutions to the fundamental problem of how to squeeze as many nutrients as possible out of foods. The book also highlights Ungar's own path-breaking studies that show how microwear analysis can help us understand ancient diets.The final part of the book provides an in-depth examination of mammalian teeth today, surveying all orders in the class, family by family. Ungar describes some of the more bizarre teeth, such as tusks, and the mammal diversity that accompanies these morphological wonders. Mammal Teeth captures the evolution of mammals, including humans, through the prism of dental change. Synthesizing decades of research, Ungar reveals the interconnections among mammal diet, dentition, and evolution. His book is a must-read for paleontologists, mammalogists, and anthropologists.Smilodon: The Iconic Sabertooth
Par Edited by Lars Werdelin, H. Gregory McDonald, and Christopher A. Shaw. 2018
The consummate guide to the ultimate sabertooth.Few animals spark the imagination as much as the sabertooth cat Smilodon. With their…
incredibly long canines, which hung like fangs past their jaws, these ferocious predators were first encountered by humans when our species entered the Americas. We can only imagine what ice age humans felt when they were confronted by a wild cat larger than a Siberian tiger.Because Smilodon skeletons are perennial favorites with museum visitors, researchers have devoted themselves to learning as much as possible about the lives of these massive cats. This volume, edited by celebrated academics, brings together a team of experts to provide a comprehensive and contemporary view of all that is known about Smilodon. The result is a detailed scientific work that will be invaluable to paleontologists, mammalogists, and serious amateur sabertooth devotees. The book • covers all major aspects of the animal's natural history, evolution, phylogenetic relationships, anatomy, biomechanics, and ecology • traces all three Smilodon species across both North and South America• brings together original, unpublished research with historical accounts of Smilodon's discovery in nineteenth-century BrazilThe definitive reference on these iconic Pleistocene mammals, Smilodon will be cited by researchers for decades to come. Contributors: John P. Babiarz, Wendy J. Binder, Charles S. Churcher, Larisa R. G. DeSantis, Robert S. Feranec, Therese Flink, James L. Knight, Margaret E. Lewis, Larry D. Martin, H. Gregory McDonald, Julie A. Meachen, William C. H. Parr, Ashley R. Reynolds. Kevin L. Seymour, Christopher A. Shaw, C. S. Ware, Lars Werdelin, H. Todd Wheeler, Stephen Wroe, M. Aleksander WysockiThe Rise of Reptiles: 320 Million Years of Evolution
Par Hans-Dieter Sues. 2019
The defining masterwork on the evolution of reptiles.Over 300 million years ago, an early land vertebrate developed an egg that…
contained the embryo in an amnion, allowing it to be deposited on land. This moment marked the first step in the fascinating and complex evolutionary journey of the reptiles. In The Rise of Reptiles, paleontologist Hans-Dieter Sues explores the diversity of reptilian lineages, discussing the relationships among turtles, crocodylians, lizards and snakes, and many extinct groups. Reflecting the tremendous advances in the study of reptilian diversity and phylogeny over recent decades, this book is the first detailed, contemporary synthesis of the evolutionary history of these remarkable animals. Reptiles have always confused taxonomists, who have endlessly debated and rewritten their classifications. In this book, Sues adopts an explicitly phylogenetic framework to sift through the evidence and discuss the origin and diversification of Reptilia in a way no one has before. He also examines the genealogical link between dinosaurs and birds and sheds new light on the Age of Reptiles, a period that saw the rise and fall of most dinosaurs. With this single meticulously researched volume, Sues paints a complete portrait of reptilian evolution. Numerous photographs of key specimens from around the world introduce readers to the reptilian fossil record, and color images of present-day reptiles illustrate their diversity. The extensive bibliography provides an invaluable guide for readers who are interested in exploring individual topics more deeply. Accurate, synthetic, and sweeping, The Rise of Reptiles is the definitive work on the subject.