@prefix rdf: . @prefix xsd: . @prefix dcterms: . @prefix skos: . @prefix rdfs: . @prefix api: . @prefix foaf: . a skos:Concept , , rdfs:Resource ; rdfs:comment "Zumaia section, northern Spain"@en ; rdfs:label "Stratotype Point Base of Selandian"@en ; rdfs:seeAlso , , ; dcterms:source "Episodes 34/4, p.220 - 243, 2011"@en ; "Base of the red marls of Itzurun Formation "@en ; "Onset of a carbon isotope shift and sea-level drop, 30 precession cycles (~630 kyr) above the top of magnetic polarity Chron 27n"@en ; true ; ; "Ratified 2008"@en ; ; skos:prefLabel "Stratotype Point Base of Selandian"@en . rdfs:label "Base of Selandian"@en ; . skos:member . skos:narrower . rdfs:label "Location of Stratotype Point Base of Selandian"@en . a api:ItemEndpoint , api:Page ; api:definition ; api:extendedMetadataVersion ; foaf:primaryTopic .