Dictionary definition: Chattian

Article: Oligocene Epoch
World of Earth Science;      452 words ... ... Paleogene Period). The Oligocene Epoch lasts from approximately ... mya) to 23 mya. The Oligocene Epoch is further subdivided ... 34 mya to 29 mya) and Chattian (29 mya to 23 mya) stages. The Oligocene Epoch was preceded by the Eocene ...

Encyclopedia entry: Oligocene epoch
The Columbia Encyclopedia, Sixth Edition;      670 words ...Oligocene epoch , third epoch of the Tertiary period in the Cenozoic era of geologic time, lasting from 38 to 24 million years ago. More of North ...

Article: Fossil Feathers Preserve Evidence of Color, Say Yale Scientists; ...
M2 Presswire;  July 9, 2008 ;     700+ words ... ... 9 July 2008-Yale University: Fossil Feathers Preserve Evidence of Color, Say Yale Scientists; Bird fossil from the Oligocene epoch, approximately 30 million years old.(C)1994-2008 M2 COMMUNICATIONS LTD RDATE:08072008 New Haven, Conn. -- The ...

Article: Tertiary Period
World of Earth Science;      700+ words ... ... the Tertiary Period, the Oligocene Epoch ranges from approximately 34 mya to 23 mya. The Oligocene Epoch is further subdivided into ... most recent) Rupelian and Chattian stages. Following the Oligocene Epoch, the Miocene Epoch ranges ...

Dictionary definition: Rupelian
A Dictionary of Earth Sciences;      289 words ...Rupelian ( Stampian ) 1. The first age in the Oligocene Epoch, preceded by the Priabonian (Late Eocene ), followed by the Chattian , and dated at 35.4–29.3 Ma ( Harland et al., 1989). 2. The name of the corresponding European ...

Dictionary definition: Oligocene
A Dictionary of Earth Sciences;      252 words ...Oligocene An epoch (35.4–23.3 Ma) of the Tertiary Period. It follows the Eocene and precedes the Miocene Epochs. The Oligocene Epoch comprises the Rupelian and Chattian Ages .

Article: Discovery of a fossilized giant rhino bone defies isolation of ...
The Hindustan Times;  March 11, 2008 ;     655 words ... ... 25 million years ago (during the Oligocene epoch), has now been shaken after an analysis ... rhinocerotoid bone dating from the Oligocene epoch (a period corresponding to intense ... Mongolia, Pakistan). Thus, during the Oligocene epoch, Anatolia was not isolated by the ...