X-Nico

unusual facts about Late Oligocene



Oxyurinae

Three enigmatic genera of waterfowl, Mionetta from the Late Oligocene to Middle Miocene of central Europe and Dunstanetta and Manuherikia from the Bathans Early/Middle Miocene of Otago, New Zealand, show some similarities to oxyurine ducks and judging from biogeography, the latter two may plausibly be related.


see also

Acer smileyi

The oldest group of specimens was recovered from the late Oligocene age Kukak Bay flora exposed on the Katmai National Park and Preserve along the Shelikof Strait in Alaska.

Caniformia

Recent molecular evidence suggests that pinnipeds evolved from a bearlike ancestor about 23 million years ago during the late Oligocene or early Miocene epochs, a transitional period between the warmer Paleogene and cooler Neogene period.

Chilgatherium

Sanders, W.J., Kappelman, J. & Rasmussen, D. T., (2004), New large-bodied mammals from the late Oligocene site of Chilga, Ethiopia.

It is known from late Oligocene (27 to 28 million years old) fossil teeth found in the Ethiopian district of Chilga.

Gulf of Suez Rift

The continental sandstones and siltstones of the Abu Zenima Formation represent the earliest syn-rift deposits of late Oligocene (Chattian) to early Miocene (Aquitanian) age.