Skip to Main Content


We review past and recent advances in Oligocene chronostratigraphy (and its internal subdivisions) and geochronology, the so-called “missing” Oligocene debate of the 1960s, and planktonic foraminiferal biostratigraphies of (sub)tropical and austral biogeographies. The Oligocene spans the interval from Chron C13r.0.14 to Subchron C6Cn.2n(0), corresponding to astronomical cycles 8401-C13n to 5801-C6Cn. It is currently subdivided into two (Rupelian and Chattian) ages/stages. The planktonic foraminiferal biostratigraphy is characterized by a 7-fold (sub) tropical and 4-fold austral zonation, respectively.

You do not currently have access to this chapter.

Figures & Tables





Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal