Neogene Paleontology in the Northern Dominican Republic PDF Download
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Languages : en
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Author: Columbia University
Publisher: Wentworth Press
ISBN: 9780530905693
Category : History
Languages : en
Pages : 66
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Alan H. Cheetham
Publisher: University of Chicago Press
ISBN: 0226389316
Category : Science
Languages : en
Pages : 416
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With all the recent advances in molecular and evolutionary biology, one could almost wonder why we need the fossil record. Molecular sequence data can resolve taxonomic relationships, experiments with fruit flies demonstrate evolution and development in real time, and field studies of Galapagos finches have provided the strongest evidence for natural selection ever measured in the wild. What, then, can fossils teach us that living organisms cannot? Evolutionary Patterns demonstrates the rich variety of clues to evolution that can be gleaned from the fossil record. Chief among these are the major trends and anomalies in species development revealed only by "deep time," such as periodic mass extinctions and species that remain unchanged in form for millions of years. Contributors explore modes of development, the tempo of speciation and extinction, and macroevolutionary patterns and trends. The result is an important contribution to paleobiology and evolutionary biology, and a spirited defense of the fossil record as a crucial tool for understanding evolution and development. The contributors are Ann F. Budd, Efstathia Bura, Leo W. Buss, Mike Foote, Jörn Geister, Stephen Jay Gould, Eckart Hâkansson, Jean-Georges Harmelin, Lee-Ann C. Hayek, Jeremy B. C. Jackson, Kenneth G. Johnson, Nancy Knowlton, Scott Lidgard, Frank K. McKinney, Daniel W. McShea, Ross H. Nehm, Beth Okamura, John M. Pandolfi, Paul D. Taylor, and Erik Thomsen.
Author: Thomas R. Waller
Publisher:
ISBN: 9780877104940
Category : Bivalves, Fossil
Languages : en
Pages : 198
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Based on approximately 25,000 specimens from the Miocene and Pliocene of the Cibao Valley, northern Dominican Republic, the bivalve family Propeamussiidae is represented by two genera and four species, including two new species, Cyclopecten acuminatus and C. zalaya; the family Pectinidae is represented by three subfamilies, six tribes, 18 genera, and 35 species. New taxa in the Pectinidae include six new genera ( Interchlamys , Chagrepecten , Gurabopecten , Paraleptopecten , Zamorapecten , and Antillipecten ), 15 new species ( Caribachlamys guayubinensis , C. jungi , Mimachlamys blowi , M. vokesorum , Palliolum ? cibaoense , Argopecten parathetidis , Chagrepecten paracactaceus , Gurabopecten uniplicatus , Lindapecten baitoaensis , L. paramuscosus , Euvola gurabensis , Zamorapecten maoensis , Antillipecten janicoensis , A. microlineatus , and A. quemadosensis) , one species in open nomenclature ( Paraleptopecten sp. a ), and one new subspecies ( Argopecten eccentricus lacabrensis ). In addition, a new name, Euvola jamaicensis , replaces the name E. barretti (Woodring, 1925). Lectotypes are designated for Cyclopecten guppyi (Dall, 1898) and Cryptopecten phrygium (Dall, 1886). Four of the genera (20%) and all but four of the species (90%) in the two families are extinct. Among the Pectinidae, 60% of the species but only 5% of the genera are endemic to the northern Dominican Republic. The high species endemism is possibly an artifact due to the absence in many other regions of precisely correlative strata as well as to differences in facies and sampling methods. Assemblages of the two families change composition going upward in stratigraphic sections measured along each major river, reflecting increasing depth of deposition, changing bottom conditions, and association with coral reefs or marine grasses and algae. Evolutionary changes within particular lineages help to resolve several previous biostratigraphic uncertainties and controversies, including the age of limestones on the Río Yaque del Norte and in the Guayubín area. Detailed study of these changes has also shed new light on the causes of dramatic faunal differences between stratigraphic sections on the Río Gurabo and Río Mao, separated by only 10 km.
Author: Marcelo R. Sánchez-Villagra
Publisher: Indiana University Press
ISBN: 0253002001
Category : Science
Languages : en
Pages : 302
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Book Description
Urumaco and Venezuelan Paleontology offers a synthesis of the paleontological record of Venezuela, including new discoveries on stratigraphy, paleobotany, fossil invertebrates, and vertebrates. Besides providing a critical summary of the record of decapods, fishes, crocodiles, turtles, rodents, armadillos, and ungulates, several chapters introduce new information on the distribution and paleobiology of groups not previously studied in this part of the world. Given its position in the northern neotropics, close to the Panamanian land bridge, Venezuela is a key location for understanding faunal exchanges between the Americas in the recent geological past. The book reviews the recent paleobotanical and vertebrate fossil record of the region, provides an understanding of Pleistocene climatic change and biogeography for the last few thousand years, and integrates new information with summaries of Spanish language works on Venezuelan geology and paleontology.
Author: Harold E. Vokes
Publisher:
ISBN: 9780877104131
Category :
Languages : en
Pages : 181
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Author: Robert Wynn Jones
Publisher: Cambridge University Press
ISBN: 0521841992
Category : Science
Languages : en
Pages : 382
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Book Description
Palaeontology has developed from a descriptive science to an analytical science used to interpret relationships between earth and life history. This book highlights its key role in the study of the evolving earth, life history and environmental processes. After an introduction to fossils and their classification, each of the principal fossil groups are studied in detail, covering their biology, morphology, classification, palaeobiology and biostratigraphy. The latter sections focus on the applications of fossils in the interpretation of earth and life processes and environments.
Author: P. Mann
Publisher: Elsevier
ISBN: 0080528597
Category : Science
Languages : en
Pages : 713
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Book Description
This 21-chapter volume provides a regionally-comprehensive collection of original studies of Caribbean basins conducted by academic and petroleum geologists and geophysicists in the early and mid-1990s. The common tectonic events discussed in the volume including the rifting and passive margin history of North and South America that led to the formation of the Caribbean region; the entry of an exotic, Pacific-derived Great Arc of the Caribbean at the leading edge of the Caribbean oceanic plateau; the terminal collision of the arc and plateau with the passive margins fringing North and South America; and subsequent strike-slip and accretionary tectonics that affected the arc-continent collision zone.Two introductory chapters (Part A) utilize recent advances in quantitative plate tectonic modeling and satellite-based gravity measurements to place the main phases of Caribbean basin formation into a global plate tectonic framework. Nineteen subsequent chapters are organized geographically and focus on individual or groups of genetically-linked basins. Part B consists of five chapters which mainly focus on basins overlying the North America plate in the Gulf of Mexico, Cuba and the Bahamas that record its rifting from South America in late Jurassic to Cretaceous time. Part C has six chapters that focus on smaller, usually heavily faulted and onshore Cenozoic basins of the northern Caribbean that formed in response to arc collisional and strike-slip activity along the evolving North America-Caribbean plate boundary. The two chapters in Part D focus on Cenozoic basins related to the Lesser Antilles arc system of the eastern Caribbean. Part E is comprised of three chapters on the Jurassic-Recent sedimentary basins of the eastern Venezuela and Trinidad area of the southeastern Caribbean. These basins reflect both the Jurassic-Cretaceous rifting and passive margin history of separation between the North and South America plates as well as a much younger phase of Oligocene to recent transpression between the eastward migrating Lesser Antilles arc and accretionary wedge and the South America continent. The three chapters of Part F contain deep penetration seismic reflection and other geophysical data on the largely submarine Cretaceous Caribbean oceanic plateau that forms the nucleus of the present-day Caribbean plate.
Author: James W. Valentine
Publisher: University of Chicago Press
ISBN: 9780226389110
Category : Science
Languages : en
Pages : 504
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Book Description
Representing the state of the art in evolutionary paleobiology, this book provides a much-needed overview of this rapidly changing field. An influx of ideas and techniques both from other areas of biology and from within paleobiology itself have resulted in numerous recent advances, including increased recognition of the relationships between ecological and evolutionary theory, renewed vigor in the study of ecological communities over geologic timescales, increased understanding of biogeographical patterns, and new mathematical approaches to studying the form and structure of plants and animals. Contributors to this volume—a veritable who's who of eminent researchers—present the results of original research and new theoretical developments, and provide directions for future studies. Individually wide ranging, these papers all share a debt to the work of James W. Valentine, one of the founders of modern evolutionary paleobiology. This volume's unified approach to the study of life on earth will be a major contribution to paleobiology, evolution, and ecology.
Author: Paul Mann
Publisher: Geological Society of America
ISBN: 0813722624
Category : Science
Languages : en
Pages : 432
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