On the Evolution of the Vertebral Column of Fishes
Author: Hans Gadow
Publisher:
Published: 1894
Total Pages: 4
ISBN-13:
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Author: Hans Gadow
Publisher:
Published: 1894
Total Pages: 4
ISBN-13:
DOWNLOAD EBOOKAuthor: H. F. Gadow
Publisher: Cambridge University Press
Published: 2014-01-02
Total Pages: 373
ISBN-13: 1107633389
DOWNLOAD EBOOKOriginally published in 1933, this book is a culmination of a lifetime of research by Hans Friedrich Gadow into the evolution of the vertebrae. Gadow outlines the various forms of vertebral development as a guide to larger and more general questions on the morphological scheme of the evolution of vertebrate creatures, and uses plentiful diagrams, photographs and reconstructions to trace spinal development. This book will be of value to anyone with an interest in the history of science.
Author: Zerina Johanson
Publisher: Cambridge University Press
Published: 2019-01-10
Total Pages: 283
ISBN-13: 1107179440
DOWNLOAD EBOOKWorld-class palaeontologists and biologists summarise the state-of-the-art on fish evolution and development.
Author: lfonso L. Rojo
Publisher: CRC Press
Published: 2017-09-29
Total Pages: 432
ISBN-13: 1351366041
DOWNLOAD EBOOKThe purposes of the present dictionary are to define the osteological and taxonomic terms referring to fishes, and to explain the rationale, both anatomical and function, of fish skeletal units, in an evolutionary and biological context. This branch of biology – fish osteology – provides a deeper insight into fish evolution, bone homologies, fish terminology, and fish taxonomy.
Author: Theagarten Lingham-Soliar
Publisher: Springer Science & Business Media
Published: 2014-02-18
Total Pages: 276
ISBN-13: 3642537480
DOWNLOAD EBOOKThe vertebrate integument arose about 450 million years ago as an ‘armour’ of dermal bony plates in small, jawless fish-like creatures, informally known as the ostracoderms. This book reviews the major changes that have occurred in the vertebrate integument from its beginnings to the present day. Critical questions concerning the origin, structure and functional biology of the bony integument are discussed and intrinsically linked to major steps in vertebrate evolution and phylogeny—the origin of jaws and the origin of teeth. The discussions include the origins of mineralization of major vertebrate skeletal components such as the dermatocranium, branchial arches and vertebral column. The advances that led to the origin of modern fishes and their phylogenetic development are reviewed and include the evolution of fins and replacement of the bony plates with several types of dermal scales. The evolution of reptiles saw a major transformation of the integument, with the epidermis becoming the protective outermost layer, from which the scales arose, while the dermis lay below it. The biological significance of the newly-evolved β-keratin in reptilian scales, among the toughest natural materials known, is discussed in the context of its major contribution to the great success of reptiles and to the evolution of feathers and avian flight. The dermis in many vertebrates is strengthened by layers of oppositely oriented cross-fibres, now firmly entrenched as a design principle of biomechanics. Throughout the book conventional ideas are discussed and a number of new hypotheses are presented in light of the latest developments. The long evolutionary history of vertebrates indicates that the significance of the Darwinian concept of “survival of the fittest” may be overstated, including in our own mammalian origins and that chance often plays a major role in evolutionary patterns. Extensive illustrations are included to support the verbal descriptions. Professor Theagarten Lingham-Soliar is in the Department of Life Sciences at the University of KwaZulu-Natal.
Author: Joy O. I. Spoczynska
Publisher:
Published: 1976
Total Pages: 160
ISBN-13:
DOWNLOAD EBOOKAuthor: Richard Owen
Publisher:
Published: 1866
Total Pages: 724
ISBN-13:
DOWNLOAD EBOOKThis work is based entirely on personal observations.
Author: William Plane Pycraft
Publisher:
Published: 1901
Total Pages: 230
ISBN-13:
DOWNLOAD EBOOKAuthor: Jennifer A. Clack
Publisher: Indiana University Press
Published: 2012
Total Pages: 561
ISBN-13: 025335675X
DOWNLOAD EBOOKAround 370 million years ago, a distant relative of a modern lungfish began a most extraordinary adventure--emerging from the water and laying claim to the land. Over the next 70 million years, this tentative beachhead had developed into a worldwide colonization by ever-increasing varieties of four-limbed creatures known as tetrapods, the ancestors of all vertebrate life on land. This new edition of Jennifer A. Clack's groundbreaking book tells the complex story of their emergence and evolution. Beginning with their closest relatives, the lobe-fin fishes such as lungfishes and coelacanths, Clack defines what a tetrapod is, describes their anatomy, and explains how they are related to other vertebrates. She looks at the Devonian environment in which they evolved, describes the known and newly discovered species, and explores the order and timing of anatomical changes that occurred during the fish-to-tetrapod transition.
Author: Theagarten Lingham-Soliar
Publisher:
Published: 2014-03-31
Total Pages: 284
ISBN-13: 9783642537493
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