Proterozoico

Also known as Proterozoic Eon

eone geologico

AI overview

The Proterozoic is the longest division of Earth's history, lasting roughly two billion years and occurring between the Archean and Phanerozoic eons. It matters because understanding this vast span of time helps scientists piece together the deep history of Earth before the emergence of most visible life forms that characterize the Phanerozoic eon.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Geologic timespan.name: Proterozoic
Geologic timespan.color: Proterozoic
Geologic timespan.top_bar: all time
Geologic timespan.image_art: Proterozoic collage new.png
Geologic timespan.caption_art: From left to right: Four main Proterozoic events: Great Oxidation Event and subsequent Huronian glaciation; First eukaryotes, like red algae; Snowball Earth in Cryogenian period; Ediacaran biota
Geologic timespan.timeline: Eons
Geologic timespan.name_formality: Formal
Geologic timespan.celestial_body: earth
Geologic timespan.usage: Global (ICS)
Geologic timespan.timescales_used: ICS Time Scale
Geologic timespan.chrono_unit: Eon
Geologic timespan.strat_unit: Eonothem
Geologic timespan.timespan_formality: Formal
Geologic timespan.lower_boundary_def: Defined Chronometrically
Geologic timespan.upper_boundary_def: Appearance of the Ichnofossil Treptichnus pedum
Geologic timespan.upper_gssp_location: Fortune Head section, Newfoundland, Canada

via Wikipedia infobox

Wikidata facts

Instance of: eonothem
Has part: Neoproterozoic
Followed by: Phanerozoic
Follows: Archean

Show 6 more facts

start time: 2500000000
Commons category: Proterozoic
end time: 538800000-
topic's main category: Category:Proterozoic
sRGB color hex triplet: F73563
IPA transcription: /ˌproʊtərəˈzoʊɪk/

Sources (4)

via Wikidata · CC0

Article · Italiano

In geologia, il Proterozoico (dal greco antico "proteron zoon"= primo vivente) è l'eone caratterizzato dalla prima abbondanza di forme di vita complesse sulla Terra. Va da 2.500 a 541 milioni di anni fa. Allo stato presente degli studi paleontologici, la data delle della Rhodesia meridionale viene usata come data d'inizio dell'era Proterozoica. Il periodo che intercorre tra la formazione della Terra, risalente a circa 4.600 milioni di anni fa, e l'era Proterozoica, si suddivide in due eoni, l'Adeano, da 4.600 a 4.000 Ma fa, e l'Archeano, da 4.000 a 2.500 Ma fa.

Abstract from DBpedia / Wikipedia · CC BY-SA