Mammal Like Reptiles And The Origin Of Mammals
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Mammal Like Reptiles And The Origin Of Mammals
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Author : Thomas Stainforth Kemp
language : en
Publisher:
Release Date : 1982
Mammal Like Reptiles And The Origin Of Mammals written by Thomas Stainforth Kemp and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Nature categories.
The Mammal Like Reptiles Of South Africa And The Origin Of Mammals
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Author : Robert Broom
language : en
Publisher:
Release Date : 1932
The Mammal Like Reptiles Of South Africa And The Origin Of Mammals written by Robert Broom and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1932 with Animal remains (Archaeology) categories.
The Origin And Evolution Of Mammals
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Author : Thomas Stainforth Kemp
language : en
Publisher: Oxford University Press, USA
Release Date : 2005
The Origin And Evolution Of Mammals written by Thomas Stainforth Kemp and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Science categories.
The Synapsida are the 'mammal-like' reptiles and mammals, a group that diverged from a common ancestor shared with reptiles and birds about 340 million years. The fossil record of the synapsids is extraordinarily good, and documents the three phases of the history of the group, each one of which points to important evolutionary generalisations as well as relating an intrinsically fascinating story. The first stage leads from the origin of the group to the earliest mammals. The non-mammalian synapsids constituted the first radiation of fully terrestrial vertebrates, dominating the land long before the dinosaurs displaced them and took over that role. The fossil record illustrates the relationship between this radiation and the environmental conditions of the Permo-Triassic when it occurred. It also illustrates to a far greater degree than any other fossil record the origin of a major new taxon. The sequence of acquisition of mammalian structures and functions inferred from the fossils leads to an interpretation about the processes involved in the evolution of mammalian biological organisation. The second stage is the Mesozoic history of mammals. Throughout the Jurassic and Cretaceous Periods, mammals remained small, insectivorous or omnivorous animals living a nocturnal existence. They were abundant and diverse, but failed completely to evolve into any of the middle-sized and large-sized forms familiar amongst today's mammals. This is usually, though not completely satisfactorily, explained by competitive exclusion by dinosaurs. The third stage is the great Cenozoic radiation of mammals. From the moment the dinosaurs disappeared 65 million years ago, new kinds of mammals proceeded to evolve. Medium and large bodied herbivore and carnivore groups appeared early, and from then onwards a kaleidoscope of origins, flourishings, and extinctions of lineages of mammals took place. This great story interweaves changing climates, shifting continents, ecological opportunities, and the fulfilment of the adaptive potential of Mammalia. The latest molecular evidence that is having a huge impact on ideas about the timing and origins of the modern mammalian taxa is discussed along with the fossil evidence. The book reviews these three stages in turn, bringing up to date the palaeontological evidence and incorporating the molecular taxonomic data that has been rapidly accumulating over the last few years, and which is responsible for a series of exciting, radicalnew ideas about relationships amongst mammals and their inferred palaeo-biogeographic history.
Reptiles A Very Short Introduction
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Author : T. S. Kemp
language : en
Publisher: Oxford University Press
Release Date : 2019-01-17
Reptiles A Very Short Introduction written by T. S. Kemp and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-17 with Science categories.
For millions of years reptiles have walked, crawled, and slithered over the face of our Earth. From the mighty dinosaurs who dominated the land, the pterosaurs who took to the air, and the marine adapted ichthyosaurs, to the living reptiles today such as the lizards, snakes, crocodiles, and turtles, plus the single species of tuatara in New Zealand, reptiles have come in all shapes and sizes. In this Very Short Introduction Tom Kemp discusses the adaptations reptiles made to first leave the sea and colonise the land in dry conditions, such as their waterproof skin, their ability to expel almost dry waste products, their efficient use of external heat for maintaining their body temperature, and the amniotic egg that is laid and develops on dry land. Considering the different living groups of reptiles today, Kemp then describes how their respective bodies are adapted for their different ways of life, from snake feeding patterns to the way crocodiles breathe. Finally, Kemp assesses the threat of extinction to reptile species due to over-exploitation, habitat destruction, and climate change, and considers what can be done. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Synapsida
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Author : John C. McLoughlin
language : en
Publisher: Viking Adult
Release Date : 1980
Synapsida written by John C. McLoughlin and has been published by Viking Adult this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Nature categories.
Mammals
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Author : Thomas Stainforth Kemp
language : en
Publisher: Oxford University Press
Release Date : 2017
Mammals written by Thomas Stainforth Kemp and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Mammals categories.
Relative newcomers within the story of evolution, mammals are hugely successful and have colonized land, water, and air. Tom Kemp discusses the great diversity of mammalian species, and looks at how their very disparate characteristics, physiologies, and behaviours are all largely driven by one uniting factor: endothermy, or warm-bloodedness.
Reptiles
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Author : Angus d'A. Bellairs
language : en
Publisher:
Release Date : 1960
Reptiles written by Angus d'A. Bellairs and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Reptiles categories.
The Evolution Of Mammalian Characters
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Author : D. M. Kermack
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
The Evolution Of Mammalian Characters written by D. M. Kermack and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
This book is not intended to give a full and comprehensive account of the Mesozoic mammals, and nor is it intended as a handbook for research workers studying pre-Tertiary mammals. Our intention is to give an account of the origin and evolution of certain of the characters of the Mammalia. We have tried to portray the fossils we describe as the living animals they once were, not as dead bones. Our account ends with the end of the Lower Cretaceous, since by that time the major characters of the mammals had become established. There exist a number of characters which, at the present day, are confined to the Mammalia. These include: (1) a jaw articulation formed by the squamosal and the dentary; (2) a chain of three bones, malleus, incus and stapes connecting the tympanic membrane to the inner ear; (3) the presence of hair or fur; (4) the presence of milk-glands in the female; (5) the left aortic arch is the systemic arch; (6) the phalangeal formula in both manus and pes is 2.3.3.3.3; (7) some of the teeth have more than one root. Of these characters (1) or (2) are sufficient by themselves to define a mammal; characters (6) and (7) are known to have been already in existence in some of the mammal-like reptiles - the ancestors of the mammals.
The Origin And Evolution Of Mammals
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Author : T. S. Kemp
language : en
Publisher: Oxford University Press on Demand
Release Date : 2005
The Origin And Evolution Of Mammals written by T. S. Kemp and has been published by Oxford University Press on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Science categories.
Mammals are the dominant large animals of today, occurring in virtually every environment. This book is an account of the remarkable 320 million year long fossil record that documents their origin, their long spell as no more than small, nocturnal creatures, and their explosive radiation since the extinction of the dinosaurs 65 million years ago. Tom Kemp also unveils the exciting molecular evidence, which, coupled with important new fossils, is presently challenging current thinking on the interrelationships and historical biogeography of mammals. The Origin and Evolution of Mammals will be of interest to advanced undergraduate and graduate students as well as researchers in vertebrate palaeontology, biogeography, mammalian systematics and molecular taxonomy. It will also be welcomed by vertebrate fossil enthusiasts and evolutionary biologists of all levels with an interest in macroevolutionary problems.
Evolution Of The Vertebrates
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Author : Edwin Harris Colbert
language : en
Publisher:
Release Date : 1961
Evolution Of The Vertebrates written by Edwin Harris Colbert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Phylogeny categories.