@prefix rdf: . @prefix xsd: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . . rdfs:label "Millions of years ago"@en . a rdfs:Resource , skos:Concept , ; skos:changeNote "2020/01 - Cretaceous: numeric age Base Hauterivian Stage changed to 132.6 Ma (was 132.9) - by request of CSC (Maria Rose Petrizio), in consultation with Hauterivian GSSP working group, awaiting GTS-2020 book publication, and based on data by Aguirre et al (2015) and Martinez et al. (2015) 132 Ma +-1 Ma. "^^xsd:string ; ; 132.6 . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .