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Paleogene

American  
[pey-lee-uh-jeen, pal-ee-] / ˈpeɪ li əˌdʒin, ˈpæl i- /

adjective

  1. noting or pertaining to the earlier part of the Cenozoic Era, in the system adopted by some geologists, occurring from 65 to 25 million years ago and including the Oligocene, Eocene, and Paleocene epochs: corresponds to the earlier part of the Tertiary Period in the system generally used in the U.S.


noun

  1. the Paleogene Period or System.

Paleogene Scientific  
/ pālē-ə-jēn′ /
  1. The oldest of two subdivisions of the Tertiary Period, including the Paleocene, Eocene, and Oligocene Epochs.


Etymology

Origin of Paleogene

1880–85; < German Paläogen, equivalent to paläo- paleo- + -gen (< Greek genésthai to be born); -gen

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

So in mid-April, after about six months of artificial impact winter, the tarps came down, the acid baths stopped and the whitewash was scraped off the glass, an abbreviated version of the Paleogene’s gradual readjustment.

From Los Angeles Times

The apocalyptic spectacle marked the end of the Cretaceous period, during which terrestrial dinosaurs had dominated the landscape, and the beginning of a new Paleogene era.

From Science Magazine

There have been several mass extinction events during the planet's history, including the Cretaceous–Paleogene extinction event, arguably the best known one because of the death of the dinosaurs.

From Fox News

There are also fossil feeding traces, some of which indicate modern-style dabbling and sediment probing occurring as far back as the Paleogene and even Early Cretaceous.

From Scientific American