Perm-trias-utryddinga (Norwegian Nynorsk Wikipedia)

Analysis of information sources in references of the Wikipedia article "Perm-trias-utryddinga" in Norwegian Nynorsk language version.

refsWebsite

Global rank Norwegian Nynorsk rank

4^th place

21^st place

2^nd place

7^th place

1sciencemag.org

857^th place

368^th place

1geoscienceworld.org

3,158^th place

806^th place

1historyfiles.co.uk

6,962^nd place

3,833^rd place

doi.org

dx.doi.org

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. PMID 15273391. doi:10.1126/science.1097023.
McElwain, J.C.; Punyasena, S.W. (2007). «Mass extinction events og the plant fossil record». Trends in Ecology & Evolution 22 (10): 548–557. doi:10.1016/j.tree.2007.09.003.

geoscienceworld.org

bulletin.geoscienceworld.org

Retallack GJ Veevers JJ & Morante R (1996). «Global coal gap between Permian–Triassic extinctions and middle Triassic recovery of peat forming plants». GSA Bulletin 108 (2): 195–207. Henta 23. august 2008.

historyfiles.co.uk

http://www.historyfiles.co.uk/FeaturesAfrica/Permian_Extinction1.htm^{[daud lenkje]}

nih.gov

ncbi.nlm.nih.gov

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. PMID 15273391. doi:10.1126/science.1097023.
McElwain, J.C.; Punyasena, S.W. (2007). «Mass extinction events og the plant fossil record». Trends in Ecology & Evolution 22 (10): 548–557. doi:10.1016/j.tree.2007.09.003.

sciencemag.org

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. PMID 15273391. doi:10.1126/science.1097023.