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

This interval is used in the definition of 5 collections

A total of 5055 collections with 51226 occurrences lie within this time span