Excerpt from The Evolution and Distribution of Fishes
The impression was, therefore, almost unwillingly forced in on the writer's mind, now fully forty years ago, that during the great Carboniferous epoch a practically continuous deposit of freshwater strata with typical plant and fish enclosures gave rise to the foundation beds or Calciferous Sandstone series of that system; that then an extensive though not deep submergence of land occurred under the sea, during which the Carboniferous Limestone was formed as a great marine deposit. Even then however occasional elevation for a longer or shorter time permitted the development Of a nearby land flora and invasion again of teeming freshwater fishes in lakes or swamps of that per iod. These however showed no trace Of existence in marine strata. Finally, during deposit Of the Coal Measures, freshwater fishes that were very different in type from those of the lower rocks, were met with in ironstone in shale, or in sandstone strata that alternated with and often shaded into coal beds.
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Paperback. Zustand: New. Print on Demand. This book challenges a long-held scientific belief that animal life, particularly fish, originated in the ocean and only later ventured into freshwater environments. The author, a renowned botanist and palaeontologist, argues for a freshwater origin of fish, drawing on his extensive fieldwork and years of research into fossil remains. Examining the fossil record, he reveals striking evidence of freshwater fish populations flourishing in ancient times, predating the appearance of marine fish in the fossil record. This book goes beyond a mere cataloguing of fossils, offering a detailed exploration of the complex interplay between geological changes, environmental pressures, and the evolutionary trajectory of fish. The author's insights into the environment of early fish, particularly the importance of freshwater habitats and thermal springs, provide a fascinating and previously unexplored perspective on the development of life on Earth. By connecting the dots between geological conditions and the evolution of fish, this book offers a compelling and thought-provoking reevaluation of our understanding of fish origins and the broader history of life on Earth. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781332301447_0
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Anbieter: PBShop.store US, Wood Dale, IL, USA
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781332301447
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781332301447
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Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 580 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar. Bestandsnummer des Verkäufers 26099192/2
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