Stratotype Point Base of Cryogenian
http://resource.geosciml.org/classifier/ics/ischart/BaseCryogenianSP
| label | Stratotype Point Base of Cryogenian | |||||||
|---|---|---|---|---|---|---|---|---|
| ratified GSSP |  |
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| source | Episodes 14/2,1991 | |||||||
| status | Ratified 1990 | |||||||
| comment | Onset of the first global glaciation. First glacial episode occurred after 750 Ma | |||||||
| type |
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| see also | index.html original | |||||||