Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's severe ...
The Journal of Geology, Vol. 112, No. 3 (May 2004), pp. 305-315 (11 pages) Abstract The ages of more than 200 detrital zircons from two Proterozoic quartzites (the Baraboo and Hamilton Mounds ...
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