en
2015-08-18 17:58 PM CEST
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/toarcian:2
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/toarcian
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/toarcian:1
Toarcian (older bound-183 +/-1.5 Ma, younger bound-175.6 +/-2 Ma)
IUGS /CGI value