Matches in DBpedia 2015-10 for { ?s ?p <http://dbpedia.org/resource/Category:Oligocene_mammals> }
- Category:Oligocene_mammals_of_North_America broader Category:Oligocene_mammals.
- Category:Oligocene_marsupials broader Category:Oligocene_mammals.
- Category:Oligocene_odd-toed_ungulates broader Category:Oligocene_mammals.
- Category:Oligocene_primates broader Category:Oligocene_mammals.
- Category:Oligocene_proboscideans broader Category:Oligocene_mammals.
- Category:Oligocene_rodents broader Category:Oligocene_mammals.
- Category:Oligocene_sirenians broader Category:Oligocene_mammals.
- Category:Oligocene_xenarthrans broader Category:Oligocene_mammals.