Definition of Eocene

1. Noun. From 58 million to 40 million years ago; presence of modern mammals.

Exact synonyms: Eocene Epoch
Group relationships: Tertiary, Tertiary Period
Generic synonyms: Epoch



Definition of Eocene

1. a. Pertaining to the first in time of the three subdivisions into which the Tertiary formation is divided by geologists, and alluding to the approximation in its life to that of the present era; as, Eocene deposits.

Definition of Eocene

1. Adjective. (geology) of a geologic epoch within the Paleogene period from about 56 to 34 million years ago. ¹

2. Noun. (geology) the Eocene epoch ¹

¹ Source: wiktionary.com

Definition of Eocene

1. of or pertaining to a certain geologic time period [adj]

Medical Definition of Eocene

1. Pertaining to the first in time of the three subdivisions into which the Tertiary formation is divided by geologists, and alluding to the approximation in its life to that of the present era; as, Eocene deposits. The Eocene formation. Origin: Gr. Daybreak, dawn + new, recent. Source: Websters Dictionary (01 Mar 1998)

Eocene Pictures

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Lexicographical Neighbors of Eocene

enzymically
enzymological
enzymologies
enzymologist
enzymologists
enzymology
enzymolysis
enzymopathy
enzyms
eo ipso
eo nomine
eoan
eobiont
eobionts
eobiotic
eocene
eohippus
eohippuses
eolian
eolianite
eolic
eolienne
eoliennes
eolipile
eolipiles
eolis
eolith
eolithic
eoliths
eolopile

Literary usage of Eocene

Below you will find example usage of this term as found in modern and/or classical literature:

1. Geological Magazine by Henry Woodward (1902)
"Eocene : Farafra Oasis. 3. B. minuta, sp. nov. Eocene : Farafra Oasis. 5. ... Eocene: Baharia Oasis: and between Qena, east side of hill. ..."

2. A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its by Charles Lyell (1857)
"MIDDLE AND LOWER Eocene FORMATIONS. Middle Eocene strata of England—Fluvio-marine aeries in the Isle of Wight and Hampshire—Successive groups of Eocene ..."

3. The Geographical Distribution of Animals: With a Study of the Relations of by Alfred Russel Wallace (1876)
"All are from the Upper Eocene of France and England. Rodentia. ... (dormouse) and Sciurus (squirrel) have been found in the Upper Eocene of France ; as well ..."

4. Bulletin of the American Museum of Natural History by American Museum of Natural History (1904)
"This discovery confirms the suppositions of Marsh and Schlosser of the existence of Edentata in the North American Eocene; and the more specific theory of ..."

5. The Encyclopædia Britannica: A Dictionary of Arts, Sciences, Literature and by Hugh Chisholm (1910)
"There is, however, a marked unconformity between the Eocene Telluride or San Miguel ... In the central and northern Apennines the Eocene strata have been ..."

6. Bulletin (1899)
"Iu view of the apparent mixture of Cretaceous and Eocene forms, ... Inasmuch as all the other genera are Eocene, it is our opinion that it will be best to ..."

7. Geology by Thomas Chrowder Chamberlin, Rollin D. Salisbury (1906)
"The marine Eocene beds are confined to the borders of the continent; the brackish-water ... The Eocene formations are like the Cretaceous in that they are, ..."

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