en
2015-08-18 17:59 PM CEST
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/sheinwoodian:1
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/sheinwoodian
Sheinwoodian (older bound-428.2 +/-2.3 Ma, younger bound-426.2 +/-2.4 Ma)
IUGS /CGI value