en
2015-08-18 17:59 PM CEST
2016-06-06 18:31 PM CEST
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/latePennsylvanian:1
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/latePennsylvanian
Late/Upper Pennsylvanian (older bound-307.2 +/-1 Ma, younger bound-299 +/-0.8 Ma)
IUGS /CGI value