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History of Life from the Hydrocarbon Fossil Record

  • C. C. Walters
  • K. E. Peters
  • J. M. Moldowan

Abstract:

Certain lipids and biopolymers retain their original structure through sedimentary diagenesis and catagenesis that they can be assigned to a specific biological origin. These “taxon-specific biomarkers” (TSBs) can serve as chemical fossils that trace the evolution of life. TSBs in Early Precambrian rocks reveal the early evolution of archaea, cyanobacteria, and eukarya and the development of atmospheric free oxygen. Steroidal TSBs document the changing nature of marine phytoplankton from Neoproterozoic organic-walled acritarchs to the predominance of present day diatoms and terpanoid TSRs reveal the evolution of higher land plants. TSBs, used in conjunction with isotopic analysis, can identify the taxa of enigmatic fossils, provide important clues to the causes of mass extinctions, and describe the global changes in biotic diversity and Earth’s conditions as the biosphere recovers. Biomarkers record the evolutionary history of life on Earth and perhaps, other planets.

Keywords

Source Rock Mass Extinction Paris Basin Rhodopseudomonas Palustris Cambrian Source Rock 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • C. C. Walters
    • 1
  • K. E. Peters
    • 2
  • J. M. Moldowan
    • 3
  1. 1.ExxonMobil Corporate Strategic ResearchAnnandaleUSA
  2. 2.U.S. Geological SurveyMenlo ParkUSA
  3. 3.Department of Geological & Environmental SciencesStanford UniversityStanfordUSA

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