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Tempo and Mode in Evolution Genetics and Paleontology 50 Years After Simpson (1995) / Chapter Skim
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Early Life
Pages 1-2

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 1...
... Since the 1960s, numerous fossil remains have been discovered of prokaryotic microbes, some of which are more than 3 billion years old. These simple asexual organisms were ecological generalists that evolved at astonishingly slow rates.
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From page 2...
... Evolutionary rates accelerated again during the Cambrian, as Andrew H Knoll shows in Chapter 4: protistan diversity increases by a factor of two and turnover rates by a factor of ten.
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Key Terms

  • messenger rna
  • ford doolittle
  • simple asexual
  • bottom half
  • protein synthesis

  • diversity increases
  • templated protein
  • evolutionary rates
  • asexual organisms
  • information transfer

  • ecological generalists
  • trna molecules
  • rates accelerated
  • regulatory elements
  • astonishingly slow

  • slow rates
  • brown explore
  • modern trna
  • genetic information
  • common ancestor

  • protistan diversity
  • amino acid
  • acid transfer
  • numerous fossil
  • fossil remains

  • differed markedly
  • prokaryotic microbes
  • molecules predate
  • nancy maizels
  • precambrian history


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