Low oxygen levels in earliest Triassic soils

@article{Sheldon2002LowOL,
  title={Low oxygen levels in earliest Triassic soils},
  author={Nathan D. Sheldon and Gregory J. Retallack},
  journal={Geology},
  year={2002},
  volume={30},
  pages={919-922}
}
An earliest Triassic methane postapocalyptic greenhouse following the Permian-Triassic (P-T) extinction event was proposed on the basis of evidence of deeply weathered paleosols at high latitudes with features of low-latitude soils, and low stomatal index values of seed fern leaves. Reexamination of distinctive phyllosilicates, unique to a single stratigraphic level, in paleosols located just above the isotopically defined Permian-Triassic boundary in Australia and Antarctica furnishes… 

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