Proterozoic
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/proterozoic
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Neoproterozoic
Neoproterozoic (older bound-1000.0 Ma, younger bound-542.0 Ma)
IUGS /CGI value
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Mesoproterozoic
Mesoproterozoic (older bound-1600.0 Ma, younger bound-1000.0 Ma)
IUGS /CGI value
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Paleoproterozoic
Paleoproterozoic (older bound-2500.0 Ma, younger bound-1600.0 Ma)
IUGS /CGI value
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