Prakambrium
Prakambrium adalah ngaran inpurmal gasan eon-eon di skala waktu giulugi nang tajadi sabalum eon Fanerozoikum wayah naya. Pariudanya dimulai matan pambantukan Bumi kira-kira 4.500 juta tahun nang bahari sampai ipulusi binatang makruskupik barurumahan karas, nang manandai dimulainya Kambrium, pariuda panambayan matan era panambayan (Paleozoikum) eon Fanerozoikum, kira-kira 542 juta tahun nang bahari. Umumnya Prakambrium dianggap tadiri matan eon Hadean, Arkean, wan Proterozoikum.

Pranala luar 
 UCMP Berkley

Rujukan 
 Bleeker, W. [2004]. "Toward a "natural" Precambrian time scale", in Felix M. Gradstein, James G. Ogg, and Alan G. Smith: A Geologic Time Scale 2004. Cambridge University Press. ISBN 0-521-78673-8.
 James Monroe and Reed Wicander, The Changing Earth, 2nd ed, (Belmont: Wadsworth Publishing Company, 1997)
 Valley, John W., William H. Peck, Elizabeth M. King (1999) Zircons Are Forever, The Outcrop for 1999, University of Wisconsin-Madison Wgeology.wisc.edu – Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago Accessed Jan. 10, 2006
 Wilde S.A., Valley J.W., Peck W.H. and Graham C.M. (2001) Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago. Nature, v. 409, pp. 175-178.
 Wyche, S., D. R. Nelson and A. Riganti (2004) 4350–3130 Ma detrital zircons in the Southern Cross Granite–Greenstone Terrane, Western Australia: implications for the early evolution of the Yilgarn Craton, Australian Journal of Earth Sciences Volume 51 Zircon ages from W. Australia - Absract Accessed Jan. 10, 2006

Skala waktu giulugi