Retrograde Evolution During Major Extinction Crises

1. Front Matter

   Pages i-xv

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2. Evolutionary Trends During Periods of Relative Ecological Equilibrium

   • Jean Guex

   Pages 1-15

3. Sublethal Environmental Stress

   • Jean Guex

   Pages 17-25

4. Retrograde Polymorphism in Some Planktonic Foraminifera

   • Jean Guex

   Pages 27-30

5. Trend Reversals in Radiolaria During Extinction Periods

   • Jean Guex

   Pages 31-36

6. Evolution of Some Cephalopods During Major Extinctions

   • Jean Guex

   Pages 37-52

7. Retrograde Evolution of Corals at the End Triassic Crisis

   • Jean Guex

   Pages 53-54

8. Retrograde Evolution of Early Triassic Conodonts

   • Jean Guex

   Pages 55-56

9. Genetic Memory in the Evolution of Silicoflagellids

   • Jean Guex

   Pages 57-61

10. Conclusions

    • Jean Guex

    Pages 63-65

11. Back Matter

    Pages 67-77

    PDF

This book is the first of its kind, providing in-depth analysis of the retrograde evolution occurring during major extinction periods. The text offers a non-strictly adaptative explanation of repetition of phyla after the major extinctions, utilizing a study of seven phylogenetically distinct groups. This opens a new experimental field in evolutionary biology with the possibility of reconstructing ancestral forms in lab by applying artificial stresses.

• environmental stress
• morphogenesis
• catastrophe theory
• phyla
• biochronology
• Model invertebrates

“This book is about fossils, and, thus, the images of various creatures of the Past dominate the book's pages. The readers will praise the author for his care of them: the informative abstract, the clear conclusion, the lengthy list of references, and the detailed index of fossil names facilitate understanding of GUEX'S ideas and simplify reading of his marvelous book. GUEX'S book is must read to all modern palaeontologists and stratigraphers. Many biologists and geologists will also find it useful” (Dmitry a. ruban, Zentralblatt für Geologie und Paläontologie, iss. 5 - 6, 2016)

• Inst. Géologie et Paléontologie, University of Lausanne, Lausanne, Switzerland

  Jean Guex

Jean Guex, Professor Emeritus, University of Lausanne (email: Jean.Guex@unil.ch)

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