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The Worst of Times : How Life on Earth Survived Eighty Million Years of Extinctions
by Paul B. Wignall


Overview -

Two hundred sixty million years ago, life on Earth suffered wave after wave of cataclysmic extinctions, with the worst wiping out nearly every species on the planet. The Worst of Times delves into the mystery behind these extinctions and sheds light on the fateful role the primeval supercontinent, known as Pangea, might have played in causing these global catastrophes.  Read more...


 
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More About The Worst of Times by Paul B. Wignall
 
 
 
Overview

Two hundred sixty million years ago, life on Earth suffered wave after wave of cataclysmic extinctions, with the worst wiping out nearly every species on the planet. The Worst of Times delves into the mystery behind these extinctions and sheds light on the fateful role the primeval supercontinent, known as Pangea, might have played in causing these global catastrophes. Drawing on the latest discoveries as well as his own firsthand experiences conducting field expeditions to remote corners of the world, Paul Wignall reveals what scientists are only now beginning to understand about the most prolonged and calamitous period of environmental crisis in Earth's history. Wignall shows how these series of unprecedented extinction events swept across the planet, killing life on a scale more devastating than the dinosaur extinctions that would follow. The Worst of Times unravels one of the great enigmas of ancient Earth and shows how this ushered in a new age of vibrant and more resilient life on our planet.


 
Details
  • ISBN-13: 9780691142098
  • ISBN-10: 0691142092
  • Publisher: Princeton University Press
  • Publish Date: September 2015
  • Page Count: 224


Related Categories

Books > Science > Paleontology
Books > Science > Earth Sciences - General
Books > Science > Life Sciences - Evolution

 
Publishers Weekly Reviews

Publishers Weekly® Reviews

  • Reviewed in: Publishers Weekly, page .
  • Review Date: 2015-08-17
  • Reviewer: Staff

Wignall, professor of paleo-environments at the University of Leeds, presents a sound examination of an 80-million-year span, which began nearly 260 million years ago, that is considered by scientists to have been the most extreme extinction event in the Earth’s history. He reveals that research into the event’s causes, which resulted in “the loss of more than 90% of all species” on Earth, points to the impact of volcanism on the supercontinent Pangaea, on a scale that is orders of magnitude beyond what humankind has experienced. He follows the pattern through the end-Permian and end-Triassic mass extinctions and four lesser crises, in each case assessing multiple theories and lines of evidence about the causes of the events. Wignall points to severe warming episodes as factors in these cataclysms, but he avoids drawing too strong a connection between these episodes and climate change today. Wignall critiques hypotheses that don’t support his own concept, but he also freely acknowledges instances when his own case is not fully proven. In sharing this story of the scientific process, he also gives credit to colleagues pursuing related research. Readers will inevitably encounter difficult terminology, but Wignall explains the relevant concepts to laypersons, making for a great example of scientific sleuthing. Illus. (Oct.)

 
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