Kekeamuan

The Kekeamuan is an Asian Land Mammal Age within the a middle Oligocene interval succeeding the Houldjinian (early Oligocene).[1]

The Houldjinian–Kekeamuan transition is a conspicuous faunal turnover of the Oligocene in Asia, marked by the extinction of several archaic mammal groups and the appearance and diversification of more derived rodents.[2]

The Kekeamuan's upper boundary is the approximate base of the Chattian age.

References

  1. ↑ Prothero, Donald R. (2017). The Princeton Field Guide to Prehistoric Mammals. Princeton, New Jersey: Princeton University Press. pp. 10, 201. ISBN 978-0-691-15682-8.
  2. ↑ Wang, Banyue (1992). "The Chinese Oligocene: A Preliminary Review of Mammalian Localities and Local Faunas". In Prothero, Donald R.; Berggren, William A. (eds.). Eocene–Oligocene Climatic and Biotic Evolution. Princeton, New Jersey: Princeton University Press. pp. 529–547. ISBN 9780691087511.


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