Middle Devonian
http://inspire.ec.europa.eu/codelist/GeochronologicEraValue/middleDevonian
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Givetian
Givetian (older bound-391.8 +/-2.7 Ma, younger bound-385.3 +/-2.6 Ma)
IUGS /CGI value
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Eifelian
Eifelian (older bound-397.5 +/-2.7 Ma, younger bound-391.8 +/-2.7 Ma)
IUGS /CGI value
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