The Tabenbulakian age is a period of geologic time (28.4—23.03 Ma) within the Oligocene epoch of the Paleogene used more specifically with Asian Land Mammal Ages. It follows the Ulangochuian age. The Tabenbulakian's lower boundary is the approximate base of the Chattian age and upper boundary is the approximate base of the Aquitanian age. Image:Geological time spiral.png This Geochronology-related article is a stub. You can help Fossil Wiki by [ expanding it].