oligocene

n.

渐新世，渐新统；

adj.

渐新世的，渐新统的；

1. Beibu Wan Basin was a lake in the middle Eocence-Lower Oligocene.
   北部湾盆地在中始新世至早渐新世是一个湖泊。
2. Venezuela, oil is produced from lenticular sandstone beds of the Oligocene oficina Formation.
   委内瑞拉奥斯特拉油田的产油层，为渐新世奥菲西那组透镜状砂岩层。
3. The continental deposits of Enping formation aged from Oligocene to Eocene of Palaeocene are well-developed and widespreaded in the Pearl River Mouth Basin.
   珠江口盆地下第三系始新统至渐新统恩平组分布广泛。

1. Beibu Wan Basin was a lake in the middle Eocence-Lower Oligocene.
   北部湾盆地在中始新世至早渐新世是一个湖泊。
2. Venezuela, oil is produced from lenticular sandstone beds of the Oligocene oficina Formation.
   委内瑞拉奥斯特拉油田的产油层，为渐新世奥菲西那组透镜状砂岩层。

Oligocene CO2 decline promoted C4 photosynthesis in grasses.
The heartbeat of the Oligocene climate system
Faunal stability during the Early Oligocene climatic crash
Global cooling during the eocene-oligocene climate transition
Astronomical calibration age for the Oligocene-Miocene boundary
Late Oligocene-early Miocene unroofing in the Chinese Tian Shan: An early effect of the India-Asia collision
Climate response to orbital forcing across the Oligocene-Miocene boundary.
A new spadefoot toad from the Oligocene of Mongolia with a summary of the evolution of the Pelobatidae
Tibetan plateau aridification linked to global cooling at the Eocene-Oligocene transition
Magnetic Polarity Stratigraphy and Mammalian Fauna of the Deseadan (Late Oligocene-Early Miocene) Salla Beds of Northern Bolivia