Hadeaidd: Gwahaniaeth rhwng fersiynau

==Bywyd==

Yn 2015 darganfuwyd mwynau [[carbon]] mewn creigiau 4.1 biliwn [[CP]] yng Ngorllewin Awstralia, a disgrifiwyd nhw fel "gweddillion bywyd biotig".<ref name="AP-20151019">{{cite news |last=Borenstein |first=Seth |title=Hints of life on what was thought to be desolate early Earth |url=http://apnews.excite.com/article/20151019/us-sci--earliest_life-a400435d0d.html |date=19 Hydref 2015 |work=[[Excite]] |location=Yonkers, NY |publisher=[[Mindspark Interactive Network]] |agency=[[Associated Press]] |accessdate=20 Hydref 2015}}</ref><ref name="PNAS-20151014-pdf">{{cite journal |last1=Bell |first1=Elizabeth A. |last2=Boehnike |first2=Patrick |last3=Harrison |first3=T. Mark |last4=Mao |first4=Wendy L. |display-authors=3 |date=19 October 2015 |title=Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon |url=http://www.pnas.org/content/early/2015/10/14/1517557112.full.pdf |format=PDF |journal=Proc. Natl. Acad. Sci. U.S.A. |location=Washington, D.C. |publisher=National Academy of Sciences |doi=10.1073/pnas.1517557112 |issn=1091-6490 |accessdate=2015-10-20 |pmid=26483481 |pmc=4664351 |volume=112 |pages=14518–21}} Early edition, published online before print.</ref>

 

==Israniadau==