Oligocene


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Related to Oligocene: Pleistocene, Pliocene, Paleocene, Miocene, Eocene

Oligocene

of, denoting, or formed in the third epoch of the Tertiary period, which lasted for 10 000 000 years

Oligocene

[ə′lig·ə‚sēn]
(geology)
The third oldest of the seven geological epochs of the Cenozoic Era, beginning 34 million years ago and ending 24 million years ago. It corresponds to an interval of geological time (and rocks deposited during that time) from the close of the Eocene Epoch to the beginning of the Miocene Epoch.
References in periodicals archive ?
This material documents all the elements of both the carapace and the plastron of the taxon represented in this early Oligocene locality.
Heterozoan carbonates in oligotrophic tropical water, The Attard Member of the lower coralline limestone formation (Upper Oligocene, Malta).
Evidence for continuity or turnover of taxa and communities is needed to assess better the likelihood of a localized mass extinction event in Oligocene New Zealand due either to loss of land and/or any contemporaneous climatic changes.
NEW OLIGOCENE TURTLE REMAINS OF THE OBERLEICHTERSBACH DOLINE FILLING (LOWER FRANCONIA, GERMANY) AND REVISION OF THE GENUS PALAEOMAUREMYS (TESTUDINES: GEOEMYDIDAE)
Weeks earlier, Hatfield said: "Having made a large gas and condensate discovery in the Upper Oligocene reservoir, we are optimistic" about the company's prospects in Kurdistan, which has proven to be rich in oil and natural gas.
Key words: Erycine snakes, Calamagras, Geringophis, Early Oligocene, Badlands National Park, SD
The aim of the paper is (1) to find structural support or the supposed unique biomineralization system of cirratulids, (2) to compare cirratulid skeletal structures with phylogenetically close sabellids and serpulids n order to find similarities, and (3) to find whether he skeletal ultrastructures of cirratulids have evolved ince the Oligocene.
He correlated the outcrops of Punta Peladas discussed here with the late Oligocene portion of the Caimito and Bohio formations of Panama (Cole, 1952).
Orogenic movements in the Late Eocene-Early Oligocene resulted in the creation of lagoonal to continental sedimentary regime characterized by detritic-evaporitec sediments of the Lower Red formation.
In one well however, Petro-Canada-Shell Wenonah J-75, examination of sidewall cores from the Oligocene interval has revealed unusual, oligospecific assemblages of benthic foraminifera.
The black oak has been around at least 24 million years, so its fossilized leaves may provide information on elevation changes since the end of the Oligocene period.