Early/Lower Ordovician
Early/Lower Ordovician
Hierarchy: | Phanerozoic Paleozoic Ordovician Early/Lower Ordovician |
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Classification: | Epoch (as per International Commission on Stratigraphy) |
Top: | 470.0 ± 1.4 Ma |
Base: | 485.4 ± 1.9 Ma |
Preceeds: | Middle Ordovician Dapingian |
Follows: | Cambrian Furongian Cambrian Stage 10 |
Primary Divisions: | FloianTremadocian |
Geologic Events
Event Name | Type | Age | Area |
---|---|---|---|
Caledonian orogeny (concludes) | Orogeny | ~505 - ~400 Ma | Europe |
Ross orogeny (concludes) | Orogeny | ~550 - ~480 Ma | Antarctica |
Overview of geological time
List all geological events