en
2015-08-18 17:59 PM CEST
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/kungurian:1
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/kungurian
Kungurian (older bound-275.6 +/-0.7 Ma, younger bound-270.6 +/-0.7 Ma)
IUGS /CGI value