@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:290829
  a <https://lod.nal.usda.gov/naltv#Topic>, skos:Concept ;
  dc:created "2017-01-27"^^xsd:date ;
  dc:modified "2017-11-10"^^xsd:date ;
  skos:broader nalt:290824 ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:narrower nalt:290853, nalt:290852, nalt:290851, nalt:290850 ;
  skos:prefLabel "Paleoproterozoic era"@en, "Paleoproterozoico"@es ;
  ns0:marc001 "82993" .

nalt:290853
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:290829 ;
  skos:prefLabel "Siderian period"@en, "Sidérico"@es .

nalt:290852
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:290829 ;
  skos:prefLabel "Rhyacian period"@en, "Riásico"@es .

nalt:290851
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:290829 ;
  skos:prefLabel "Orosírico"@es, "Orosirian period"@en .

nalt:290850
  a ns0:Topic, skos:Concept ;
  skos:broader nalt:290829 ;
  skos:prefLabel "Estatérico"@es, "Statherian period"@en .

nalt:290824
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:290829 ;
  skos:prefLabel "Proterozoic eon"@en, "Proterozoico"@es .