- Eocene epoch
- nounfrom 58 million to 40 million years ago; presence of modern mammals• Syn: ↑Eocene• Instance Hypernyms: ↑epoch• Part Holonyms: ↑Tertiary, ↑Tertiary period
Useful english dictionary. 2012.
Eocene epoch
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Eocene Epoch — Major division of the Tertiary Period, from 54. 8 to 33.7 million years ago. It follows the Paleocene Epoch and precedes the Oligocene Epoch. The name, derived from the Greek eos ( dawn ), refers to the dawn of recent life; during the Eocene, all … Universalium
Eocene — [ē′ō sēn΄, ē′əsēn΄] adj. [ EO + CENE] [sometimes e ] designating or of the second geologic epoch of the Paleogene, characterized by a warm climate and the development of mammals designating or of the second geologic epoch of the Paleogene,… … English World dictionary
Eocene — System Series Stage Age (Ma) Neogene Miocene Aquitanian younger Paleogene Oligocene … Wikipedia
epoch — /ep euhk/ or, esp. Brit., /ee pok/, n. 1. a particular period of time marked by distinctive features, events, etc.: The treaty ushered in an epoch of peace and good will. 2. the beginning of a distinctive period in the history of anything: The… … Universalium
Eocene Series — second of five main divisions (in ascending order) in the Tertiary System, representing all those rocks on a global basis that were deposited during the Eocene Epoch (57.8–36.6 million years ago). It designates a subdivision proposed in… … Universalium
Eocene — /ee euh seen /, Geol. adj. 1. noting or pertaining to an epoch of the Tertiary Period, occurring from 55 to 40 million years ago and characterized by the advent of the modern mammalian orders. See table under geologic time. n. 2. the Eocene Epoch … Universalium
Eocene — 1. adjective of a geologic epoch within the Paleogene period from about 56 to 34 million years ago 2. noun the Eocene epoch … Wiktionary
Eocene — E•o•cene [[t]ˈi əˌsin[/t]] adj. 1) gel 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 2) gel the Eocene Epoch or Series •… … From formal English to slang
Eocene — e·o·cene || iËəʊsiËn n. second division of the Cenozoic era (Geology) adj. (Geology) pertaining to the Eocene Epoch, pertaining to the second division of the Cenozoic era … English contemporary dictionary
Eocene — second epoch of the Tertiary Period, coined in English 1831, from EO (Cf. eo ) + Gk. kainos new (see RECENT (Cf. recent)); along with MIOCENE (Cf. Miocene) and PLIOCENE (Cf. Pliocene), by the Rev. William Whewell (1794 1866), English polymath … Etymology dictionary
