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Taphonomy And Paleoecology Of The Judith River Formation Late Cretaceous Of South Central Montana
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Book Synopsis Taphonomy and Paleoecology of the Judith River Formation (Late Cretaceous) of South-Central Montana by : Anthony R. Fiorillo
Download or read book Taphonomy and Paleoecology of the Judith River Formation (Late Cretaceous) of South-Central Montana written by Anthony R. Fiorillo and published by . This book was released on 1989 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sedimentology and Taphonomy of a Dinosaur Bonebed from the Upper Cretaceous (Campanian) Judith River Formation of North Central Montana by : Jeffrey William LaRock
Download or read book Sedimentology and Taphonomy of a Dinosaur Bonebed from the Upper Cretaceous (Campanian) Judith River Formation of North Central Montana written by Jeffrey William LaRock and published by . This book was released on 2000 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Vertebrate Fauna of the Judith River Formation, Montana by : Ashok Sahni
Download or read book The Vertebrate Fauna of the Judith River Formation, Montana written by Ashok Sahni and published by . This book was released on 1972 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Geologic investigation of the late Cretaceous Judith River Formation in the area just north of the Judith River on the Missouri River in north-central Montana has resulted in the discovery of varied vertebrate forms. The beds are mainly freshwater continental deposits consisting of crossbedded channel sandstones, gray siltstones, and carbonaceous shales with occasional seams of lignitic coal. The stratigraphic sequence consists of the Marias River Shale overlain by the Eagle, Claggett, Judith River, and Bearpaw formations. The last four constitute Montana Group. The Judith River Formation is Campanian in age as determined by its position between the fossiliferous marine Claggett and Bearpaw shales. The fauna was obtained from the upper 50 feet of the formation. The bone concentration in the productive sandstone is the result of size sorting leading to underrepresentation of the larger dinosaurs. Three orders of mammals are represented, the Eutheria by a single genus, the Allotheria by five, and the Metatheria by at least three genera. Teiid and parasaniwid lizards are frequent. Only a fraction of the large number of described dinosaur genera, however, is represented in the collection by isolated teeth. Fish and amphibians form a sizable portion of the fauna. Vertebrates from the Judith River Formation are more primitive than, but generally similar to, later Maestrichtian species. The mammals differ from their descendants in the Lance Formation at the species level. The community structure and the paleoecology of the fauna of the Judith River Formation resemble those of the Lance Formation. The greatest difference between the two communities is the greater variety of dinosaurs in the earlier formation"--P. 325.
Book Synopsis An Experimental and Field-based Approach to the Taphonomy of Microvertebrate Assemblages by : Mara E. Brady
Download or read book An Experimental and Field-based Approach to the Taphonomy of Microvertebrate Assemblages written by Mara E. Brady and published by . This book was released on 2005 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study explores the origin of concentrations of small fossil bones and teeth preserved in (1) pond/lake and (2) active channel deposits in the Judith River Formation of Montana. Vertebrate fossils recovered from both types of assemblages are similar in shape and rounding, but channel concentrations are better sorted. In flume experiments, bone concentrations formed when an active flow was directed through sediment beds with initially dispersed bone material. The coarse bone fraction was minimally transported, while the fine fraction was winnowed to distal parts of the flume. These results suggest channel assemblages may be derived from pre-existing pond/lake assemblages.
Book Synopsis Terrestrial Ecosystems Through Time by : Anna K. Behrensmeyer
Download or read book Terrestrial Ecosystems Through Time written by Anna K. Behrensmeyer and published by University of Chicago Press. This book was released on 1992-08-15 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breathtaking in scope, this is the first survey of the entire ecological history of life on land—from the earliest traces of terrestrial organisms over 400 million years ago to the beginning of human agriculture. By providing myriad insights into the unique ecological information contained in the fossil record, it establishes a new and ambitious basis for the study of evolutionary paleoecology of land ecosystems. A joint undertaking of the Evolution of Terrestrial Ecosystems Consortium at the National Museum of Natural History, Smithsonian Institution, and twenty-six additional researchers, this book begins with four chapters that lay out the theoretical background and methodology of the science of evolutionary paleoecology. Included are a comprehensive review of the taphonomy and paleoenvironmental settings of fossil deposits as well as guidelines for developing ecological characterizations of extinct organisms and the communities in which they lived. The remaining three chapters treat the history of terrestrial ecosystems through geological time, emphasizing how ecological interactions have changed, the rate and tempo of ecosystem change, the role of exogenous "forcing factors" in generating ecological change, and the effect of ecological factors on the evolution of biological diversity. The six principal authors of this volume are all associated with the Evolution of Terrestrial Ecosystems program at the National Museum of Natural History, Smithsonian Institution.
Book Synopsis Diversity, Biogeography, and Taphonomy of Late Cretaceous Chondrichthyans from Montana by : Yasemin Ifakat Tulu
Download or read book Diversity, Biogeography, and Taphonomy of Late Cretaceous Chondrichthyans from Montana written by Yasemin Ifakat Tulu and published by . This book was released on 2010 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hadrosaurs written by David A. Eberth and published by Indiana University Press. This book was released on 2014-11-05 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study of the Late Cretaceous, duck-billed dinosaur, featuring insights on its origins, anatomy, and more. Hadrosaurs—also known as duck-billed dinosaurs—are abundant in the fossil record. With their unique complex jaws and teeth perfectly suited to shred and chew plants, they flourished on Earth in remarkable diversity during the Late Cretaceous. So ubiquitous are their remains that we have learned more about dinosaurian paleobiology and paleoecology from hadrosaurs than we have from any other group. In recent years, hadrosaurs have been in the spotlight. Researchers around the world have been studying new specimens and new taxa seeking to expand and clarify our knowledge of these marvelous beasts. This volume presents the results of an international symposium on hadrosaurs, sponsored by the Royal Tyrrell Museum and the Royal Ontario Museum, where scientists and students gathered to share their research and their passion for duck-billed dinosaurs. A uniquely comprehensive treatment of hadrosaurs, the book encompasses not only the well-known hadrosaurids proper, but also Hadrosaouroidea, allowing the former group to be evaluated in a broader perspective. The 36 chapters are divided into six sections—an overview, new insights into hadrosaur origins, hadrosaurid anatomy and variation, biogeography and biostratigraphy, function and growth, and preservation, tracks, and traces—followed by an afterword by Jack Horner. “Well designed, handsome and fantastically well edited (credit there to Patricia Ralrick), congratulations are deserved to the editors for pulling together a vast amount of content, and doing it well. The book contains a huge quantity of information on these dinosaurs.” —Darren Naish, co-author of Tetrapod Zoology, Scientific American “Hadrosaurs have not had the wide publicity of their flesh-eating cousins, the theropods, but this remarkable dinosaur group offers unique opportunities to explore aspects of palaeobiology such as growth and sexual dimorphism. In a comprehensive collection of papers, all the hadrosaur experts of the world present their latest work, exploring topics as diverse as taxonomy and stratigraphy, locomotion and skin colour.” —Michael Benton, University of Bristol
Download or read book Bonebeds written by Raymond R. Rogers and published by University of Chicago Press. This book was released on 2010-02-15 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vertebrate fossil record extends back more than 500 million years, and bonebeds—localized concentrations of the skeletal remains of vertebrate animals—help unlock the secrets of this long history. Often spectacularly preserved, bonebeds—both modern and ancient—can reveal more about life histories, ecological associations, and preservation patterns than any single skeleton or bone. For this reason, bonebeds are frequently studied by paleobiologists, geologists, and archeologists seeking to piece together the vertebrate record. Thirteen respected researchers combine their experiences in Bonebeds, providing readers with workable definitions, theoretical frameworks, and a compendium of modern techniques in bonebed data collection and analysis. By addressing the historical, theoretical, and practical aspects of bonebed research, this edited volume—the first of its kind—provides the background and methods that students and professionals need to explore and understand these fantastic records of ancient life and death.
Book Synopsis Journal of Vertebrate Paleontology by :
Download or read book Journal of Vertebrate Paleontology written by and published by . This book was released on 2007 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Dinosauria by : David B. Weishampel
Download or read book The Dinosauria written by David B. Weishampel and published by Univ of California Press. This book was released on 2007-12-17 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition includes coverage of dinosaur systematics, reproduction, life history strategies, biogeography, taphonomy, paleoecology, thermoregulation & extinction.
Book Synopsis Comparative Taphonomy and Paleoecological Reconstruction of Two Microvertebrate Accumulations from the Late Cretaceous Hell Creek Formation (Maastrichtian), Eastern Montana by :
Download or read book Comparative Taphonomy and Paleoecological Reconstruction of Two Microvertebrate Accumulations from the Late Cretaceous Hell Creek Formation (Maastrichtian), Eastern Montana written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparative Taphonomy and Paleoecological Reconstruction of Two Microvertebrate Accumulations from the Late Cretaceous (Maastrichtian) Hell Creek Formation, Eastern Montana by : Laura Elizabeth Wilson
Download or read book Comparative Taphonomy and Paleoecological Reconstruction of Two Microvertebrate Accumulations from the Late Cretaceous (Maastrichtian) Hell Creek Formation, Eastern Montana written by Laura Elizabeth Wilson and published by . This book was released on 2006 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CM assemblage is dominated by tabular, low density elements such as cycloid scales and fish vertebrae. Dense, equidimensional elements such as teeth and ganoid fish scales dominate the JPC assemblage. Transport distances, hydraulic equivalencies of dominant skeletal elements, amount of hydraulic sorting and reworking, and degree of time-averaging varies between deposits and significantly affect taxonomic distributions. Chi-squared tests and rank order analysis results demonstrate that relative abundance of taxa can be determined for portions of the assemblages despite different taphonomic processes. Most notably, relative abundance of hydraulically equivalent skeletal elements from morphologically similar organisms can be compared regardless of accumulation in non-isotaphonomic deposits. Statistical comparisons were made among osteichthians using ganoid scales, caudates using vertebrae, ornithischians using teeth, and testudinates using shell fragments. Results show that portions of the assemblage analyzed using hydrodynamically equivalent elements are not significantly different.
Book Synopsis Vertebrate Paleontological Techniques: Volume 1 by : Patrick Leiggi
Download or read book Vertebrate Paleontological Techniques: Volume 1 written by Patrick Leiggi and published by Cambridge University Press. This book was released on 2005-06-02 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Everything that amateur and professional fossil hunters will ever need to know about modern palaeontological techniques and practice.
Book Synopsis Encyclopedia of Dinosaurs by : Philip J. Currie
Download or read book Encyclopedia of Dinosaurs written by Philip J. Currie and published by Elsevier. This book was released on 1997-10-06 with total page 901 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the most authoritative encyclopedia ever prepared on dinosaurs and dinosaur science. In addition to entries on specific animals such as Tyrannosaurus, Triceratops, and Velociraptor, the Encyclopedia of Dinosaurs covers reproduction, behavior, physiology, and extinction. The book is generously illustrated with many detailed drawings and photographs, and includes color pictures and illustrations that feature interpretations of the best known and most important animals. All alphabetical entries are cross-referenced internally, as well as at the end of each entry. The Encyclopedia includes up-to-date references that encourage the reader to investigate personal interests. The most authoritative encyclopedia ever prepared on dinosaurs Includes many detailed drawings, photographs and illustrations in both color and black-and-white Contains comprehensively cross-referenced alphabetical entries with internal references, as well as references at the conclusion of each entry Provides in-depth references, allowing readers to pursue independent interests Includes sixteen plates and 35 color illustrations
Book Synopsis Taphonomy of the Sun River Bonebed, Late Cretaceous (Campanian) Two Medicine Formation of Montana by : Benjamin Andrew Scherzer
Download or read book Taphonomy of the Sun River Bonebed, Late Cretaceous (Campanian) Two Medicine Formation of Montana written by Benjamin Andrew Scherzer and published by . This book was released on 2008 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1998, a bonebed of juvenile dinosaur material was found in beds of the Two Medicine Formation along the Sun River in Teton County, Montana. Initial inspection of the "Sun River Bonebed" indicated unique dominance by juvenile remains and unusually high concentration of fossil material. Modern exposure of both the bonebed and surrounding strata allowed for a detailed taphonomic study of the assemblage. In the summer of 2004, the bonebed was excavated in a fashion that recorded depthwise taphonomic data of fossil material and surrounding sediment, and allowed for three-dimensional reconstruction of the bonebed. The lithology of the surrounding beds was documented for 120 m immediately below and 40 m immediately above the bonebed to interpret the overall depositional environment of the area. Lastly, the paleobiologic and sedimentologic interpretations made for the bonebed were compared to bonebeds of similar fauna in the Two Medicine Formation. Taphonomic attributes of the fossil material indicate a mass death assemblage of late juvenile lambeosaurines subject to post-mortem bioturbation and possible fluvial transport. A number of elements from the assemblage exhibit a rare form of taphonomic modification known as "wet rot," currently documented in only one other dinosaur bonebed. Sedimentologic and additional taphonomic data in the assemblage indicate entrainment of the vertebrate material in a cohesive debris flow and ultimate deposition in the respective flow deposit. The sedimentology of the surrounding beds indicates ultimate deposition in an ephemeral fluvial environment. The restricted age class representation of the assemblage lends credence to existing paleobiologic interpretations of hadrosaurids in the Late Cretaceous of Montana, and the Sun River Bonebed is significant in its exhibition of "wet rot" modification and in being one of a restricted number of documented debris-flow hosted vertebrate bonebeds.
Book Synopsis Contributions to Late Cretaceous Stratigraphy and Paleontology, Western Montana by : T. S. Dyman
Download or read book Contributions to Late Cretaceous Stratigraphy and Paleontology, Western Montana written by T. S. Dyman and published by . This book was released on 1991 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1989 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
