This book recognizes and celebrates the contributions of Professor Ashok Sahni to the field of paleontology. Prof. Sahni established a School of Vertebrate Palaeontology at Panjab University, Chandigarh, India, where he trained many of today’s vertebrate paleontologists of India. The book covers topics on evolutionary patterns, macroevolutionary events, origination and radiation events, changes in physical environments & climate and their implications for biodiversity dynamics, intercontinental affinities and biogeographic connections in a plate tectonic framework. The book begins by exploring India in the age of the dinosaurs, discussing new fossil remains from the Jurassic Era, then moves through the Cretaceous and Eocene to provide a picture on faunal and floral changes in Gondwanaland in the context of plate tectonics. Furthermore, the book explores the evolutionary patterns and biotic dispersals that resulted from the northward drift of Indian plate during the Cretaceous and its collision with Asia in the Eocene. The respective chapters reveal the role of plate tectonics and climate in shaping the geographical distribution of plants and animals in Gondwana, specifically in India, as well as the post-India/Asia collision implications for biodiversity changes and biogeography in the region’s continental environments. Given its scope, the book will appeal to vertebrate paleontologists, evolutionary biologists, and paleobiogeographers.
Modern crocodylians--crocodiles, alligators, caiman (Central and South America), and gharials (India)--have evolved over 250 million years from a fully terrestrial, bipedal ancestor. Along with birds, crocodylians are the only living members of Archosauria, the group including nonavian dinosaurs. Ruling Reptiles features contributions on a broad range of topics surrounding crocodylian evolution and biology including osteology, osteohistology, developmental biology, myology, odontology, functional morphology, allometry, body size estimation, taphonomy, parasitology, ecology, thermophysiology, and ichnology. It demonstrates how the wide variety of these studies can also provide crucial insights into dinosaurian biology and evolution. Featuring the latest findings and interpretations, Ruling Reptiles: Crocodylian Biology and Archosaur Paleobiology is an essential resource for zoologists, biologists, and paleontologists.
The Ceratosauria is modified to include two super families with one new subfamily. Two new species of Ceratosaurus are described, the first based on an articulated skeleton from the Fruita Paleontological Area in western Colorado, and the second on skeletal elements of a single individual from the Cleveland-Lloyd Dinosaur Quarry in east-central Utah. A number of additional specimens, identifiable only to genus, have been found in North America and are mentioned or briefly described. Specimens from East Africa and Switzerland are also considered to be identifiable only to genus. The peculiar genus Labrosaurus is placed in synonymy with Allosaurus.
This volume presents state-of-the-art papers on important topics and methods in the analysis of vertebrate microfossil assemblages. The minute remains of animals and plants have proven very useful to paleontologists as tools for dating large fossils, describing the environments which existed at the time the fossils were deposited, and identifying and mapping the extent of local floras and faunas, among other things. Due to the large sample sizes that can be obtained, the chance to recover rare taxa is much higher than it is during a search for skeletal remains. Analysis of the data produced from microvertebrate localities can address a wide range of questions as these papers clearly demonstrate.
The date is January 11, 1911. A young German paleontologist, accompanied only by a guide, a cook, four camels, and a couple of camel drivers, reaches the lip of the vast Bahariya Depression after a long trek across the bleak plateau of the western desert of Egypt. The scientist, Ernst Freiherr Stromer von Reichenbach, hopes to find fossil evidence of early mammals. In this, he will be disappointed, for the rocks here will prove to be much older than he thinks. They are nearly a hundred million years old. Stromer is about to learn that he has walked into the age of the dinosaurs. At the bottom of the Bahariya Depression, Stromer will find the remains of four immense and entirely new dinosaurs, along with dozens of other unique specimens. But there will be reversals—shipments delayed for years by war, fossils shattered in transit, stunning personal and professional setbacks. Then, in a single cataclysmic night, all of his work will be destroyed and Ernst Stromer will slip into history and be forgotten. The date is January 11, 2000—eighty-nine years to the day after Stromer descended into Bahariya. Another young paleontologist, Ameri-can graduate student Josh Smith, has brought a team of fellow scientists to Egypt to find Stromer’s dinosaur graveyard and resurrect the German pioneer’s legacy. After weeks of digging, often under appalling conditions, they fail utterly at rediscovering any of Stromer’s dinosaur species. Then, just when they are about to declare defeat, Smith’s team discovers a dinosaur of such staggering immensity that it will stun the world of paleontology and make headlines around the globe. Masterfully weaving together history, science, and human drama, The Lost Dinosaurs of Egypt is the gripping account of not one but two of the twentieth century’s great expeditions of discovery.
Drawn from a 2005 international symposium, these essays explore current tyrannosaurid current research and discoveries regarding Tyrannosaurus rex. The opening of an exhibit focused on “Jane,” a beautifully preserved tyrannosaur collected by the Burpee Museum of Natural History, was the occasion for an international symposium on tyrannosaur paleobiology. This volume, drawn from the symposium, includes studies of the tyrannosaurids Chingkankousaurus fragilis and “Sir William” and the generic status of Nanotyrannus; theropod teeth, pedal proportions, brain size, and craniocervical function; soft tissue reconstruction, including that of “Jane”; paleopathology and tyrannosaurid claws; dating the “Jane” site; and tyrannosaur feeding and hunting strategies. Tyrannosaurid Paleobiology highlights the far ranging and vital state of current tyrannosaurid dinosaur research and discovery. “Despite being discovered over 100 years ago, Tyrannosaurus rex and its kin still inspire researchers to ask fundamental questions about what the best known dinosaur was like as a living, breathing animal. Tyrannosaurid Paleobiology present a series of wide-ranging and innovative studies that cover diverse topics such as how tyrannosaurs attacked and dismembered prey, the shapes and sizes of feet and brains, and what sorts of injuries individuals sustained and lived with. There are also examinations of the diversity of tyrannosaurs, determinations of exactly when different kinds lived and died, and what goes into making a museum exhibit featuring tyrannosaurs. This volume clearly shows that there is much more to the study of dinosaurs than just digging up and cataloguing old bones.” —Donald M. Henderson, Royal Tyrrell Museum of Palaeontology