Functional And Phyletic Features Of Mammalian Dental Enamel
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Functional And Phyletic Features Of Mammalian Dental Enamel
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Author : Elizabeth Rachel Dumont
language : en
Publisher:
Release Date : 19??
Functional And Phyletic Features Of Mammalian Dental Enamel written by Elizabeth Rachel Dumont and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 19?? with Dental enamel categories.
The Microstructure Of Reptilian Tooth Enamel
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Author : P. Martin Sander
language : en
Publisher:
Release Date : 1999-01-01
The Microstructure Of Reptilian Tooth Enamel written by P. Martin Sander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Dental enamel categories.
A survey of the enamel microstructure of 43 reptilian taxa reveals great structural variety and complexity. With the exception of the agamid lizard Uromastyx, all taxa have enamel without prisms. Reptilian enamel is thus not comparable to that of the Mammalia. The development of a new terminology was necessary to describe reptilian enamel and to address questions of functional vs. phylogenetic constraints on its microstructure. This new terminology was developed using a similar approach to one developed for mammalian enamel. It is hierarchical and free of amelogenetic or phylogenetic connotations. Starting at the smallest structures, five levels of complexity are recognized: crystallite level, module level, enamel type level, schmelzmuster level, and dentition level. Detailed microstructural analysis of the 43 taxa using the new terminology indicates that phylogenetic constraints are of little significance. Only two higher taxa, advanced ornithopod dinosaurs and the Ichthyosauria, show distinctive enamel synapomorphies. Biomechanical constraints on the internal structure of reptilian enamel are even more difficult to discern. The major factor determining microstructure is enamel surface morphology, i.e. the ridges and wrinkles on the surface of many teeth which presumably are adaptive. Reptilian amelogenesis is largely responsible for the creation of this morphology as the boundary plane between the dentin and the enamel (the EDJ) is smooth and not ridged or wrinkled. The concept of amelogenesis as enamel surface morphogenesis is best illustrated by a comparison of durophagous reptiles. Numerous unrelated groups convergently evolved the typical bulbous tooth shape but each group has an autapomorphic enamel microstructure. Other ecomorphotypes such as ziphodont carnivores exhibit convergent evolution of enamel microstructure. The structures observed raise important questions about reptilian amelogenesis. There certainly is no one-to-one correspondence between structural units and the ameloblast matrix as opposed to the situation in mammals. Such a correspondence has been assumed in the current models of the evolutionary origins of mammalian enamel prisms, and its absence invalidates these models.
Development Function And Evolution Of Teeth
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Author : Mark F. Teaford
language : en
Publisher: Cambridge University Press
Release Date : 2007-02-01
Development Function And Evolution Of Teeth written by Mark F. Teaford and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-01 with Science categories.
In this field there has been an explosion of information generated by scientific research. One of the beneficiaries of this has been the study of morphology, where new techniques and analyses have led to insights into a wide range of topics. Advances in genetics, histology, microstructure, biomechanics and morphometrics have allowed researchers to view teeth from alternative perspectives. However, there has been little communication between researchers in the different fields of dental research. This book brings together overviews on a wide range of dental topics linking genes, molecules and developmental mechanisms within an evolutionary framework. Written by the leading experts in the field, this book will stimulate co-operative research in fields as diverse as paleontology, molecular biology, developmental biology and functional morphology.
The Teeth Of Mammalian Vertebrates
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Author : Barry K. B. Berkovitz
language : en
Publisher: Academic Press
Release Date : 2018-08-10
The Teeth Of Mammalian Vertebrates written by Barry K. B. Berkovitz and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-10 with Science categories.
The Teeth of Mammalian Vertebrates presents a comprehensive survey of mammalian dentitions that is based on material gathered from museums and research workers from around the world. The teeth are major factors in the success of mammals, and knowledge of tooth form and function is essential in mammalian biology. Illustrated with high-quality color photographs of skulls and dentitions, together with X-rays, CT images and histology, this book reveals the tremendous variety of tooth form and structure in mammals. Written by two internationally-recognized experts in dental anatomy, the book provides an up-to-date account of how teeth are adapted to acquiring and processing food. With its companion volume, this book provides a complete survey of the teeth of vertebrates. It is the ideal resource for students and researchers in zoology, biology, anthropology, archaeology and dentistry. Provides a comprehensive account of mammalian dentitions, together with helpful reading lists Illustrated by 900 high-quality photographs, X-rays, CT scans and histological images from leading researchers and world class museum collection Depicts lateral and occlusal views of the skull and dentition, which conveys a much greater level of morphological detail than line drawings Contains clear-and-concise, up-to-date reviews of the structure and properties of dental tissues, especially the enamel and tooth support system, both of which play vital roles in the functioning of the mammalian dentition
Comparative Studies Of Enamel And Functional Morphology In Selected Mammals With Tribosphenic Molar Teeth
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Author : Craig Breckinridge Wood
language : en
Publisher:
Release Date : 1992
Comparative Studies Of Enamel And Functional Morphology In Selected Mammals With Tribosphenic Molar Teeth written by Craig Breckinridge Wood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Dental enamel categories.
The Teeth Of Non Mammalian Vertebrates
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Author : Barry Berkovitz
language : en
Publisher: Elsevier
Release Date : 2023-06-17
The Teeth Of Non Mammalian Vertebrates written by Barry Berkovitz and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-17 with Science categories.
The Teeth of Non-Mammalian Vertebrates: Form, Function, Development and Growth, Second Edition is devoted to the teeth and dentitions of living fishes, amphibians, and reptiles. This book presents a comprehensive survey of the wide variety of tooth forms among non-mammalian vertebrates, based on descriptions of approximately 450 species belonging to about 170 families.This latest edition discusses the functional morphology of feeding, the attachment of teeth, and the relationship of tooth form to function, with each chapter accompanied by a comprehensive, up-to-date reference list. Following the descriptions of the teeth and dentitions in each class, four chapters review current topics with considerable research activity: tooth development; tooth replacement; and the structure, formation, and evolution of the dental hard tissues. The Teeth of Non-Mammalian Vertebrates: Form, Function, Development and Growth, Second Edition is authored by internationally recognized teachers and researchers in the field. This new edition reflects the resurgence of interest in the dentitions of non-mammalian vertebrates as experimental systems to help understand genetic changes in evolution of teeth and jaws. Features more than 650 images, including photographs from internationally recognized researchers and world class collections Offers in depth information on tooth structure, development, attachment, and replacement Provides detailed descriptions of the dentitions of all living groups of non-mammalian vertebrates Discusses the relationship between tooth form and structure to function in the feeding process
Structure Function And Evolution Of Teeth
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Author : Patricia Smith
language : en
Publisher: Freund Publishing House Ltd.
Release Date : 1992
Structure Function And Evolution Of Teeth written by Patricia Smith and has been published by Freund Publishing House Ltd. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Medical categories.
Mammal Teeth
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Author : Peter S. Ungar
language : en
Publisher: JHU Press
Release Date : 2010-10-01
Mammal Teeth written by Peter S. Ungar and has been published by JHU Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-01 with Science categories.
Winner, 2010 PROSE Award for Excellence in the Biological Sciences. Professional and Scholarly Publishing division of the Association of American Publishers In 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.
Mammalian Teeth Form And Function
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Author : Thomas Martin
language : en
Publisher:
Release Date : 2021-01-27
Mammalian Teeth Form And Function written by Thomas Martin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-27 with categories.
Dental Functional Morphology
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Author : Peter W. Lucas
language : en
Publisher: Cambridge University Press
Release Date : 2004-06-03
Dental Functional Morphology written by Peter W. Lucas and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-03 with Medical categories.
Dental Functional Morphology offers an alternative to the received wisdom that teeth merely crush, cut, shear or grind food and shows how teeth adapt to diet. Providing an analysis of tooth action based on an understanding of how food particles break, it shows how tooth form from the earliest mammals to modern-day humans can be understood using very basic considerations about fracture. It outlines the theoretical basis step by step, explaining the factors governing tooth shape and size and provides an allometric analysis that will revolutionize attitudes to the evolution of the human face and the impact of cooked foods on our dentition. In addition, the basis of the mechanics behind the fracture of different types of food, and methods of measurement are given in an easy-to-use appendix. It will be an important sourcebook for physical anthropologists, dental and food scientists, palaeontologists and those interested in feeding ecology.