35.9 - 28.9 Ma

The definition of this interval in the timescale South American Land Mammal Ages is taken from the following source:

• J. J. Flynn and C. C. Swisher, III. 1995. Cenozoic South American Land Mammal Ages: correlation to global geochronology. Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication 54:317-333 view

The top and bottom ages have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

There are intervals in 7 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Rupelian age, Eocene epoch, Priabonian age, Oligocene epoch
• Cenozoic Subepochs: Early Oligocene subepoch, Late Eocene subepoch
• Mammal Paleogene Zones: MP 23 zone, MP 22 zone, MP 20 zone, MP 25 zone, MP 21 zone, MP 18 zone, MP 24 zone, MP 19 zone, MP 17B zone, MP 17A zone
• Paleogene Mammal Ages of Asia: Hsandagolian age, Kekeamuan age, Ulangochuian age, Houldjinian age, Ergilian age
• North American Land Mammal Ages: Arikareean age, Orellan age, Chadronian age, Whitneyan age
• North American Mammal Subages/Zones: early Late Arikareean subage, Geringian subage, early Early Arikareean subage, Late Chadronian subage, Middle Chadronian subage, late Early Arikareean subage, late Late Arikareean subage, Early Chadronian subage
• Cretaceous-Cenozoic of New Zealand: Runangan age, Arnold epoch, Whaingaroan age, Landon epoch

This interval is used in the definition of 5 collections

A total of 5037 collections with 51174 occurrences lie within this time span