s/n15243730

Information
has gloss	(noun) the longest division of geological time aeon, eon
lexicalization	eng: aeon
lexicalization	eng: eon
subclass of	(noun) the time of the physical formation and development of the earth (especially prior to human history) geologic time, geological time
has instance	(noun) the period from about 5,400 million years ago until the present Phanerozoic aeon, Phanerozoic, Phanerozoic eon
has instance	(noun) the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago Precambrian, Precambrian aeon, Precambrian eon, Precambrian period
has instance	(noun) from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms Proterozoic, Proterozoic eon, Proterozoic aeon
has instance	(noun) the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life Archeozoic, Archeozoic eon, Archean eon, Archean, Archean aeon, Archaeozoic, Archaeozoic aeon
has instance	(noun) the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life Hadean eon, Hadean aeon, Hadean, Priscoan aeon, Priscoan eon, Priscoan, Hadean time

Links
has part	(noun) a major division of geological time; an era is usually divided into two or more periods era, geological era
Show unreliable ▼
similar	e/simple/Eon