Statherian
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Statherian — The Statherian (IPAEng|stəˈθɪəriən, el. statheros , meaning stable, firm ) is the final geologic period in the Paleoproterozoic Era and lasted from 1800 Ma to 1600 Ma (million years ago). Instead of being based on stratigraphy, these dates are… … Wikipedia
Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… … Wikipedia
Neoproterozoic — era 1000 542 million years ago Key events in the Neoproterozoic view • edit … Wikipedia
Mesoproterozoic — era 1600 1000 million years ago Key events in the Mesoproterozoic view • edit … Wikipedia
Cryogenian — Period 850–630 million years ago … Wikipedia
Orosirian — The Orosirian ( /ˌɒrɵˈ … Wikipedia
Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies … Wikipedia
Cambrian — For other uses, see Cambrian (disambiguation). Cambrian Period 542–488.3 million years ago … Wikipedia
Carboniferous — For the album by Zu see Carboniferous (album). Carboniferous Period 359.2–299 million years ago … Wikipedia
Cretaceous — Period 145.5–65.5 million years ago … Wikipedia
