Calymmian
Calymmian
Hierarchy: | Precambrian Proterozoic Mesoproterozoic Calymmian | ||||||||
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Classification: | Period (as per International Commission on Stratigraphy) | ||||||||
Top: | 1400 Ma | ||||||||
Base: | 1600 Ma | ||||||||
Preceeds: | Ectasian | ||||||||
Follows: | Paleoproterozoic Statherian | ||||||||
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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Platform covers expand. Barramundi Orogeny, McArthur Basin, Northern Australia, and Isan Orogeny, c.1600 Ma, Mount Isa Block, Queensland
Geologic Events
Event Name | Type | Age | Area |
---|---|---|---|
Kibaran orogeny (begins) | Orogeny | 1400 - 1000 Ma | Mid to Southern Africa |
Columbia (Nuna) supercontinent breakup (begins) | Continental Breakup | 1425 ± 75 - 1250 ± 50 Ma | Global |
Gothian orogeny (concludes) | Orogeny | ~1750 - ~1500 Ma | Europe |
Great Oxygenation Event (concludes) | Major Climatic Event | ~3500 - ~850 Ma | Global |
Overview of geological time
List all geological events