KnowraOligoceneLinked fromLinked fromThe 26 pages that link to Oligocene, each with the reason it gives.All 26Broader topic 4Related 17Narrower topic 4Compared with 1PaleogeneBroader topic: It closes the period as global climates cooled and Antarctic ice expanded.CenozoicBroader topic: It records a major shift toward the icehouse conditions of later Cenozoic.MesonychidaeBroader topic: The last mesonychids survived into the early part of this epoch before the family disappeared.ArsinoitheriumBroader topic: Arsinoitherium persisted into this epoch, when African ecosystems were changing.