Stratotype Point Base of Cryogenian

http://resource.geosciml.org/classifier/ics/ischart/BaseCryogenianSP

label Stratotype Point Base of Cryogenian
ratified GSSP true
source Episodes 14/2,1991
status Ratified 1990
comment Onset of the first global glaciation. First glacial episode occurred after 750 Ma
type
StratigraphicPoint original
Resource original
Concept original
see also index.html original