Arshantan From Wikipedia, the free encyclopedia The Arshantan age is a period of geologic time (48.6–37.2 Ma) within the Early Eocene epoch of the Paleogene used more specifically with Asian Land Mammal Ages. It follows the Bumbanian age and precedes the Irdinmanhan age. The upper boundary layer of the Arshantan can be the lower boundary of the Priabonian[1] ↑ Paleo Database: Arshantan vtePaleogene PeriodPaleocene EpochEocene EpochOligocene Epoch Danian Selandian Thanetian Ypresian Lutetian Bartonian Priabonian Rupelian Chattian This geochronology article is a stub. You can help Wikipedia by expanding it.vte Related Articles~TimelinesTop QsFact Checks