قالب:عصر ديفوني graphical timeline

Events of the Devonian Period

−420 —

–

−415 —

–

−410 —

–

−405 —

–

−400 —

–

−395 —

–

−390 —

–

−385 —

–

−380 —

–

−375 —

–

−370 —

–

−365 —

–

−360 —

–

−355 —

Silurian

Carbon-
iferous

←

Rhynie chert^[1]

←

Hangenberg event

←

Kellwasser event(s)^[2]

←

Widespread^[3]
shrubs & trees

←

S. America
glaciation begins

←

Hunsrück fauna

D
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Palæozoic

Key events of the Devonian Period.
Axis scale: millions of years ago.

المراجع

^ Parry, S.F. (2011). "A high-precision U–Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications". Journal of the Geological Society. London: Geological Society. 168 (4): 863–872. doi:10.1144/0016-76492010-043. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help); zero width space character in |doi= at position 9 (help)
^ Kaufmann, B. (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. Bibcode:2004JG....112..495K. doi:10.1086/421077. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
^ 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. doi:10.1098/rstb.1998.0195.

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Usage

Thanks for editing this timeline. While the syntax may look complicated, it's really quite simple.

The periods should all be accurate, as they are taken from the 2004 geological timescale, so you are most likely to want to edit the arrowed notes. Scroll down towards the bottom and you'll notice something like:

|note1=Something happened
|note1-at=-200

Just add more notes, incrementing the number each time! If you want more precise control, details are available at {{Graphical timeline}}. Any problems, just contact Verisimilus T.

المراجع

Usage

See also