Useful english dictionary. 2012.
geological period — noun a unit of geological time during which a system of rocks formed ganoid fishes swarmed during the earlier geological periods • Syn: ↑period • Hypernyms: ↑geological time, ↑geologic time • Hyponyms: ↑ice age, ↑ … Useful english dictionary
geological time — noun the time of the physical formation and development of the earth (especially prior to human history) • Syn: ↑geologic time • Hypernyms: ↑time • Hyponyms: ↑eon, ↑aeon, ↑period, ↑ … Useful english dictionary
Era — An era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods of time of arbitrary but well defined length, such as for example the Mesozoic era from 252 Ma–66 Ma, delimited … Wikipedia
Era Aviation — IATA Code: 7H … Deutsch Wikipedia
Era Eoarcaica — Saltar a navegación, búsqueda Eón Era M. años Fanerozoico 542,0 ±1,0 Proterozoico 2.500 … Wikipedia Español
era — /ear euh, er euh/, n. 1. a period of time marked by distinctive character, events, etc.: The use of steam for power marked the beginning of an era. 2. the period of time to which anything belongs or is to be assigned: She was born in the era of… … Universalium
ERA — 1. Also, era Baseball. See earned run average. 2. Emergency Relief Administration. 3. Equal Rights Amendment: proposed 27th amendment to the U.S. Constitution that would prohibit discrimination on the basis of sex. * * * I Very long span of… … Universalium
Geological history of Earth — impacting the Earth in a glancing blow. [cite journal | last = R. Canup and E. Asphaug | title = Origin of the Moon in a giant impact near the end of the Earth s formation | journal = Nature | volume = 412 | pages = 708–712 | date = 2001 | url =… … Wikipedia
Geological history of India — The geological history of India started with the geological evolution of rest of the Earth i.e. 4.57 bya (billion years ago). India has a diverse geology. Different regions in India contain rocks of all types belonging to different geologic… … Wikipedia
Era Mesozoica — Eón[1] Era Millones años Fanerozoico Cenozoico 65,5 ±0,3 Mesozoico 251,0 ±0,4 Paleozoico 542,0 ±1,0 … Wikipedia Español
