Permo-Triassic Extinctions: Effects of Area on Biotic Equilibrium

@article{Simberloff1974PermoTriassicEE,
  title={Permo-Triassic Extinctions: Effects of Area on Biotic Equilibrium},
  author={D. Simberloff},
  journal={The Journal of Geology},
  year={1974},
  volume={82},
  pages={267 - 274}
}
Schopf (1974) suggests that the decrease in number of families of marine invertebrates during the Permian and subsequent increase in the Lower Triassic are due to changes in the area of the shallow marine seas. Shallow marine sea coverage fell by two-thirds, then more than doubled, and the number of families appears roughly to have tracked areal change. Since a change in area cannot be followed immediately by extinction or origination of families, the Permo-Triassic situation may have been a… Expand

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