The Anthropocene biosphere

@article{Williams2015TheAB,
  title={The Anthropocene biosphere},
  author={Mark Williams and Jan A. Zalasiewicz and Peter Haff and Christian Schw{\"a}gerl and Anthony D Barnosky and Erle C. Ellis},
  journal={The Anthropocene Review},
  year={2015},
  volume={2},
  pages={196 - 219}
}
The geological record preserves evidence for two fundamental stages in the evolution of Earth’s biosphere, a microbial stage from ~3.5 to 0.65 Ga, and a metazoan stage evident by c. 650 Ma. We suggest that the modern biosphere differs significantly from these previous stages and shows early signs of a new, third stage of biosphere evolution characterised by: (1) global homogenisation of flora and fauna; (2) a single species (Homo sapiens) commandeering 25–40% of net primary production and also… 
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