Permian-Triassic Life Crisis on Land

@article{Retallack1995PermianTriassicLC,
  title={Permian-Triassic Life Crisis on Land},
  author={G. Retallack},
  journal={Science},
  year={1995},
  volume={267},
  pages={77 - 80}
}
  • G. Retallack
  • Published 1995
  • Geography, Medicine
  • Science
  • Recent advances in radiometric dating and isotopic stratigraphy have resulted in a different placement of the Permian-Triassic boundary within the sedimentary sequence of the Sydney Basin of southeastern Australia. This boundary at 251 million years ago was a time of abrupt decline in both diversity and provincialism of floras in southeastern Australia and extinction of the Glossopteris flora. Early Triassic vegetation was low in diversity and dominated by lycopods and voltzialean conifers. The… CONTINUE READING

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