Eocene


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Related to Eocene: Paleocene, Oligocene

E·o·cene

 (ē′ə-sēn′)
adj.
Of, relating to, or being the epoch of geologic time from about 56 to 34 million years ago, the second epoch of the Tertiary Period. It is characterized by warm climates, the rise of most modern mammalian families, and the formation of the Himalayas. See Table at geologic time.
n.
The Eocene Epoch.

Eocene

(ˈiːəʊˌsiːn)
adj
(Palaeontology) of, denoting, or formed in the second epoch of the Tertiary period, which lasted for 20 000 000 years, during which hooved mammals appeared
n
(Palaeontology) the Eocene the Eocene epoch or rock series
[C19: from eo- + -cene]

E•o•cene

(ˈi əˌsin)
adj.
1. noting or pertaining to an epoch of the Tertiary Period, occurring from 55 million to 40 million years ago, characterized by the advent of the modern mammalian orders.
n.
2. the Eocene Epoch or Series.
[1831; eo- + -cene]

E·o·cene

(ē′ə-sēn′)
The second epoch of the Tertiary Period, from about 58 to 37 million years ago, characterized by warm climates and the rise of most modern families of mammals. See Chart at geologic time.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Eocene - from 58 million to 40 million years agoEocene - from 58 million to 40 million years ago; presence of modern mammals
Tertiary, Tertiary period - from 63 million to 2 million years ago
Translations

Eocene

[ˈiːəʊsiːn] ADJ (Geol) → eoceno
References in classic literature ?
For a moment my gaze traversed the landscape beneath until it was caught and held by four figures near the base of the cliff--a human figure held at bay by three hyaenodons, those ferocious and blood-thirsty wild dogs of the Eocene.
Cuvier used to urge that no monkey occurred in any tertiary stratum; but now extinct species have been discovered in India, South America, and in Europe even as far back as the eocene stage.
In North America, two genera (Palaeophis and Pterosphenus) and six species of palaeopheid snakes are known from Gulf Coast and Atlantic coastal Eocene marine or marine-influenced sediments.
Cretaceous, Palaeocene and Eocene sporo-pollen assemblages from some
A small new species of the anthracotheriid artiodactyl genus Heptacodon is described from the middle Eocene Yegua Formation (Claiborne Group) from a site near Lovelady, Houston County, Texas.
The Upper Eocene (UE) consists of greenish marlaceous clays with silicon sandstone inter-layers, foraminifers, shales of ostracordes and the teeth of fish.
OGX") (Bovespa: OGXP3; OTC: OGXPY), the Brazilian oil and gas company responsible for the largest private sector exploratory campaign in Brazil, announced today that it has identified two oil-bearing intervals, one in the Aptian section of well 1-OGX-10-RJS and another in the Eocene section of well 1-OGX-13-RJS, which are located in the BM-C-42 and BM-C-41 blocks, respectively, in the shallow waters of the southern part of the Campos Basin.
5 My ago, was a geologically brief (~170 ky) episode of globally elevated temperature that was superimposed on the long-term Late Paleocene and Early Eocene warming trend (Fig.
The sand dollar echinoid Periarchus lyelli (Conrad) is a distinctive and well-known element of the fauna of Upper Eocene (Jackson) marls and limestones across the eastern Gulf of Mexico and lower Atlantic coastal plain.
Chevron Corporation said its subsidiary, Saudi Arabian Chevron (SAC), has achieved first steam injection at its large scale pilot (LSP) steamflood project at Wafra Field, an Eocene heavy-oil carbonate reservoir in onshore partitioned neutral zone (PNZ).
So, in New Scientist's final analysis, while "Ida is a remarkably complete specimen that promises to teach us a great deal about the biology of some of the earliest and least human-like of all known primates, the Eocene adapiforms," the fossil "is not a 'missing link'--at least not between anthropoids and more primitive primates.
The late Eocene Earth; hothouse, icehouse, and impacts.