Oligocene

The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present . .. [it] refers to the sparsity of additional modern mammalian species of fauna after a burst of evolution during the Eocene. (wiki)

Timeline

Connected Sites

Site Rationale Link
Australian Fossil Mammal Sites The older fossils occur at Riversleigh, which boasts an outstanding collection from the Oligocene to Miocene, some 10-30 million years ago. The more recent story then moves to Naracoorte, where one of the richest deposits of vertebrate fossils from the glacial periods of the mid-Pleistocene to the current day (from 530,000 years ago to the present) is conserved. (Nom file)
Chaîne des Puys the 30-km-long Limagne fault escarpment as the expression of continental break-up, subsidence and sedimentation which took place between 37 and 25 Ma (million years ago) (AB Eval)
China Danxia About 23 ma ago, movement of the Himalayan range, disturbed the land around Guandong, China creating much uplift and completely changing the topography of the area. (Wiki)
Lake Baikal It is also among the clearest of all lakes, and thought to be the world's oldest lake at 25 million years (wiki)
Papahanaumokuakea The Northwestern Hawaiian Islands were formed, approximately 7 to 30 million years ago, as shield volcanoes over the same volcanic hotspot that formed the Emperor Seamounts to the north and the Main Hawaiian Islands to the south.(Wiki)
Simien National Park This complex was formed by volcanic eruptions in the Teniary Oligocene-Miocene Age some 20-30 million years ago; ever since, it has been going through processes of uplifting and erosion
Tajik National Park TNP includes branches of the grandiose Central-Asian mountain ranges which are the result of the uplifting of the Pamirs which started 25 millions years ago and which is still ongoing. (nom file)
Wadi Rum Die Landschaft entstand vor ca. 30 Mio. Jahren. (Wiki)

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