Major Events in the Paleozoic Eon - Statistics

General Stats
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Answer Stats
Hint Answer % Correct
2nd major event Beginning of Great Oxidation Event
100%
2.5–1.6 billion years ago Paleoproterozoic Era
100%
2.5–2.3 billion years ago Siderian Period
100%
major event 5 Avalon explosion (270 species)
0%
major event 4 Baykonurian Glaciation
0%
3rd major event Beginning of Huronian Glaciation
0%
1st major event Beginning of the "Boring Billion"
0%
major event Breakup of "Columbia"
0%
1st major event Breakup of "Kenorland"
0%
1.6–1.4 billion years ago Calymmian Period
0%
720 - 635 million years ago Cryogenian Period
0%
Biota 1 Diskagma
0%
1.4–1.2 billion years ago Ectasian Period
0%
635 - 538.8 million years ago Ediacaran Period
0%
major event 1 end of "Boring Billion"
0%
1st major event End of Great Oxidation Event
0%
1st major event End of Huronian Glaciation
0%
major event 2 first sexually reproducing organisms
0%
major event 2 first sponge-like animal "Otavia"
0%
3rd major event Formation of "Columbia"
0%
major event 1 Formation of "Gondwana"
0%
major event 6 Formation of ozone
0%
major event 1 Formation of "Rodinia"
0%
Biota 2 Francevillian biota
0%
major event 3 Gaskiers Glaciation
0%
major event 2 Lantian biota appears
0%
major event 2 Marinoan Glaciation
0%
1.6–1.0 billion years ago Mesoproterozoic Era
0%
1000 - 538.8 million years ago Neoproterozoic Era
0%
2.05–1.8 billion years ago Orosirian Period
0%
2.3–2.05 billion years ago Rhyacian Period
0%
1.8–1.6 billion years ago Statherian Period
0%
1.2–1.0 billion years ago Stenian Period
0%
major event 1 Sturtian Glaciation
0%
1000 - 720 million years ago Tonian Period
0%
2nd major event Vredefort impact
0%
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