File:Mollweide_Paleographic_Map_of_Earth,_45_Ma_(Lutetian_Age).png · Wikimedia Commons · See Wikimedia Commons

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始新世

地質時代中古近紀（Paleogene）的第二個主要分期，大約開始於5600萬年前-終於3400萬年前

AI overview

The Eocene is a period in Earth's history that lasted from about 56 to 33.9 million years ago, making it the second major time division of the Paleogene Period. This epoch is significant because it represents a key chapter in the Cenozoic Era, the long stretch of geological time that followed the extinction of the dinosaurs.

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

Key facts

Geologic timespan.name: Eocene
Geologic timespan.color: Eocene
Geologic timespan.time_start: 56.00
Geologic timespan.time_end: 33.9
Geologic timespan.image_map: Mollweide Paleographic Map of Earth, 45 Ma (Lutetian Age).png
Geologic timespan.caption_map: A map of Earth 45 million years ago during the Eocene Epoch, Lutetian Age
Geologic timespan.timeline: Paleogene
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: Epoch
Geologic timespan.strat_unit: Series
Geologic timespan.timespan_formality: Formal
Geologic timespan.lower_boundary_def: Strong negative anomaly in δ13C values at the PETM
Geologic timespan.lower_gssp_location: Dababiya section, Luxor, Egypt
Geologic timespan.lower_gssp_accept_date: 2003
Geologic timespan.upper_boundary_def: LAD of Planktonic Foraminifers Hantkenina and Cribrohantkenina

via Wikipedia infobox

Wikidata facts

Instance of: series
Has part: Ypresian
Named after: dawn
Followed by: Oligocene
Follows: Paleocene
Image: Mesonyx.jpg
Significant event: Eocene–Oligocene extinction event

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Commons category: Eocene
topic's main category: Category:Eocene
start time: 56000000-0
end time: 33900000-0
sRGB color hex triplet: FEB979
named by: Charles Lyell

Sources (2)

via Wikidata · CC0

Article · 中文

始新世（英語：Eocene）是地質時代中古近紀（Paleogene）的第二個主要分期，大約開始於5600萬年前-終於3400萬年前，介於古新世（Paleocene）與漸新世（Oligocene）之間。始新世（Eocene）之名，字源來自希臘文eos（開端）和ceno （新），指的是現代哺乳動物群出現的開始。始新世常被劃分成早期（距今5600萬年∼5,200萬年）、中期（距今5,200萬∼4,360萬年）和晚期（距今4,360萬∼3400萬年）。始新世早期最令人受到注意的是，原始的現代哺乳動物的出現。始新世結束於一個被稱作（哺乳動物物种连续性上的“大断裂”）的大型生物集群滅絕。此一事件可能是關於一或數顆的大火流星撞擊西伯利亞以及現在的切萨皮克湾所造成。

Abstract from DBpedia / Wikipedia · CC BY-SA