Implications of the late Palaeozoic oxygen pulse for physiology and evolution

@article{Graham1995ImplicationsOT,
  title={Implications of the late Palaeozoic oxygen pulse for physiology and evolution},
  author={Jeffrey B. Graham and Nancy M. Aguilar and Robert Dudley and Carl Gans},
  journal={Nature},
  year={1995},
  volume={375},
  pages={117-120}
}
The late Palaeozoic was marked by significant changes in atmospheric chemistry and biotic composition. Geochemical models suggest a marked increase and then decline of atmospheric oxygen and associated shifts in the concentration of carbon dioxide. Although the actual magnitude of these changes is uncertain, the pulse of oxygen concentration may have reached a maximum of 35% and then dropped to 15% (compared with the present 21%). This oxygen pulse may have influenced the evolution of major… CONTINUE READING