Үлгі:Девон кезеңі graphical timeline
Навигацияға өту
Іздеуге өту
Девон оқиғалары
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Key events of the Devonian period.
Axis scale: millions of years ago.
Axis scale: millions of years ago.
- ↑ Kaufmann, B.; Trapp, E.; Mezger, K. (2004). "The numerical age of the Upper Frasnian(Upper Devonian) Kellwasser horizons: A new U-Pb zircon date from Steinbruch Schmidt(Kellerwald, Germany)". The Journal of geology 112 (4): 495-501. doi:10.1086/421077.
- ↑ Algeo, T.J. (1998). "Terrestrial-marine teleconnections in the Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events". Philosophical Transactions of the Royal Society B: Biological Sciences 353 (1365): 113-130.