Wicipedia

Nodyn:Triasig graphical timeline

Digwyddiadau allweddol o fewn y Triasig
P
s
M
e
s
o
s
ö
i
g
Permaidd
T
r
i
a
s
i
g
Jwrasig
C
y
n
n
a
r
C
a
n
o
l
H
w
y
r
Indwaidd
Olenecaidd
Anisiaidd
Ladiniaidd
Carniaidd
Noriaidd
Rhaetiaidd
 
 
 
 
 
←
Difodiant mawr bywyd
←
Coed[1]
←
Glo[2]
←
Cwrel a sbwng[3]
Llinell amser (amcan) o Ddigwyddiadau o fewn y Triasig.
Graddfa'r echelin: Miliynnau o flynyddoedd cyn y presennol.

References

These references will appear in the article, but this list appears only on this page.
  1. ↑ McElwain, J. C.; Punyasena, S. W. (2007). "Mass extinction events and the plant fossil record". Trends in Ecology & Evolution 22 (10): 548–557. doi:10.1016/j.tree.2007.09.003. PMID 17919771.
  2. ↑ Retallack, G. J.; Veevers, J.; Morante, R. (1996). "Global coal gap between Permian–Triassic extinctions and middle Triassic recovery of peat forming plants". GSA Bulletin 108 (2): 195–207. doi:10.1130/0016-7606(1996)108<0195:GCGBPT>2.3.CO;2. http://bulletin.geoscienceworld.org/cgi/content/abstract/108/2/195. Adalwyd 2007-09-29.
  3. ↑ Payne, J. L.; Lehrmann, D. J.; Wei, J.; Orchard, M. J.; Schrag, D. P.; Knoll, A. H. (2004). "Large Perturbations of the Carbon Cycle During Recovery from the End-Permian Extinction". Science 305 (5683): 506–9. doi:10.1126/science.1097023. PMID 15273391. http://www.sciencemag.org/cgi/content/abstract/305/5683/506.
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