Stenian
Stenian
| Hierarchy: | Precambrian Proterozoic Mesoproterozoic Stenian | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Classification: | Period (as per International Commission on Stratigraphy) | ||||||||
| Top: | 1000 Ma | ||||||||
| Base: | 1200 Ma | ||||||||
| Preceeds: | Neoproterozoic Tonian | ||||||||
| Follows: | Ectasian | ||||||||
| FGDC code: | ` | ||||||||
| GSSP: | Defined chronometrically | ||||||||
| Fossil Record Data via PaleoBioDB Taxa Count Key First appearance Extinction First appearance and extinction Related precursors |
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Narrow highly metamorphic belts due to orogeny as Rodinia forms. Late Ruker / Nimrod Orogeny in Antarctica possibly begins. Musgrave Orogeny (c. 1080 Ma), Musgrave Block, Central Australia.
Geologic Events
| Event Name | Type | Age | Area |
|---|---|---|---|
| Late Ruker / Nimrod orogeny | Orogeny | 1000 ± 150 Ma | Antarctica |
| First sexual reproduction (concludes) | Evolutionary event | ~1200 Ma | Global |
| Grenville orogeny (ongoing) | Orogeny | 1250 - 980 Ma | Northern America, Scotland |
| Sveconorwegian orogeny (concludes) | Orogeny | ~1250 - ~900 Ma | Europe |
| Rodinia assembly (concludes) | Continental Assembly | ~1300 - ~900 Ma | Global |
| Ur joins Rodinia (concludes) | Continental Assembly | ~1300 - 1071 Ma | Global |
| Kibaran orogeny (concludes) | Orogeny | 1400 - 1000 Ma | Mid to Southern Africa |
| Great Oxygenation Event (concludes) | Major Climatic Event | ~3500 - ~850 Ma | Global |
Overview of geological time
List all geological events
