Paleocene

[ pey-lee-uh-seen or, especially British, pal-ee- ]

/ ˈpeɪ li əˌsin or, especially British, ˈpæl i- /

Geology

adjective

noting or pertaining to an epoch of the Tertiary Period, from 65 to 55 million years ago, and characterized by a proliferation of mammals.

noun

the Paleocene Epoch or Series.

Origin of Paleocene

First recorded in 1875–80; paleo- + -cene

Words nearby Paleocene

Paleo-Asiatic, paleobiochemistry, paleobiogeography, paleobiology, paleobotany, Paleocene, paleocerebellum, paleoclimate, paleoclimatology, paleoconservative, paleocortex

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for Paleocene

Perhaps, this high ratio reflects the imperfectly carnivorous habits of the Paleocene creodonts as a group.
Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico|Robert W. Wilson
The Oligocene division has been generally accepted as a distinct period, but “Paleocene” is not so widely used.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6|Various
The mammalian faunas of the Paleocene of central Utah, with notes on the geology.
Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico|Robert W. Wilson
This collection was obviously of Torrejonian or middle Paleocene age.
Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico|Robert W. Wilson

Scientific definitions for Paleocene

Paleocene

[ pā′lē-ə-sēn′ ]

The earliest epoch of the Tertiary Period, from about 65 to 58 million years ago. During this time, the Rocky Mountains formed and sea levels dropped, exposing dry land in North America, Australia, and Africa. Many new types of small mammals evolved and filled the niches left empty after the extinctions that ended the Cretaceous Period. Soft-bodied squid replaced the ammonites as the dominant form of mollusk. See Chart at geologic time.

单词	paleocene
释义	Paleocene [ pey-lee-uh-seen or, especially British, pal-ee- ] / ˈpeɪ li əˌsin or, especially British, ˈpæl i- / Geology adjective noting or pertaining to an epoch of the Tertiary Period, from 65 to 55 million years ago, and characterized by a proliferation of mammals. noun the Paleocene Epoch or Series. Origin of Paleocene First recorded in 1875–80; paleo- + -cene Words nearby Paleocene Paleo-Asiatic, paleobiochemistry, paleobiogeography, paleobiology, paleobotany, Paleocene, paleocerebellum, paleoclimate, paleoclimatology, paleoconservative, paleocortex Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for Paleocene Perhaps, this high ratio reflects the imperfectly carnivorous habits of the Paleocene creodonts as a group. Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico\|Robert W. Wilson The Oligocene division has been generally accepted as a distinct period, but “Paleocene” is not so widely used. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6\|Various The mammalian faunas of the Paleocene of central Utah, with notes on the geology. Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico\|Robert W. Wilson This collection was obviously of Torrejonian or middle Paleocene age. Preliminary Survey of a Paleocene Faunule from the Angels Peak Area, New Mexico\|Robert W. Wilson Scientific definitions for Paleocene Paleocene [ pā′lē-ə-sēn′ ] The earliest epoch of the Tertiary Period, from about 65 to 58 million years ago. During this time, the Rocky Mountains formed and sea levels dropped, exposing dry land in North America, Australia, and Africa. Many new types of small mammals evolved and filled the niches left empty after the extinctions that ended the Cretaceous Period. Soft-bodied squid replaced the ammonites as the dominant form of mollusk. See Chart at geologic time. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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