Prakambriyum

Prakambriyum (Pra-Kambriyum) iku jeneng informal tumrap rentang wektu sadurungé jaman Phanerozoic Eon, lan minangka siji Supereon kapérang dadi sawetara eons sajeroning skala wektu géologi. Rentang wektu Pra-Kambriyum wiwit jaman dumadiné bumi watara 4600 Ma (yuta taun kapungkur) nganti wiwitan jaman périodhe Kambriyum , watara 542 Ma, nalika wiwit akèh tinemu kéwan mawa thothok atos.

Wacan

• 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.; Graham, C. M. (2001). "Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago". Nature 409 (6817): 175–178. PMID 11196637. doi:10.1038/35051550. 
• Wyche, S.; Nelson, D. R.; Riganti, A. (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 51 (1): 31–45. doi:10.1046/j.1400-0952.2003.01042.x. 

Pranala njaba

• Late Precambrian Supercontinent and Ice House World from the Paleomap Project