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三叠纪

Also known as Triassic Period, Triassic System

地质年代中生代第一个纪，开始于约2.52亿年前，结束于2.01亿年前

AI overview

The Triassic is a geologic period that lasted about 50.5 million years, starting 251.902 million years ago after the Permian Period ended and ending 201.4 million years ago when the Jurassic Period began. It matters because it was the first and shortest period of the Mesozoic Era, and both its beginning and end were marked by major extinction events that reshaped life on Earth.

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

Key facts

Geologic timespan.color: Triassic
Geologic timespan.time_start: 251.902
Geologic timespan.time_start_uncertainty: 0.024
Geologic timespan.time_end: 201.4
Geologic timespan.time_end_uncertainty: 0.2
Geologic timespan.image_map: Mollweide Paleographic Map of Earth, 225 Ma (Norian Age).png
Geologic timespan.caption_map: A map of Earth as it appeared during the Norian age of the Late Triassic
Geologic timespan.timeline: Triassic
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: Period
Geologic timespan.strat_unit: System
Geologic timespan.timespan_formality: Formal
Geologic timespan.lower_boundary_def: First appearance of the conodont Hindeodus parvus
Geologic timespan.lower_gssp_location: Meishan, Zhejiang, China
Geologic timespan.lower_gssp_accept_date: 2001

via Wikipedia infobox

Wikidata facts

Instance of: system
Has part: Late Triassic
Followed by: Jurassic
Follows: Permian
Image: Trossingen formation NT.jpg
Significant event: Triassic-Jurassic mass extinction

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described by source: Encyclopædia Britannica 11th edition
Commons category: Triassic
topic's main category: Category:Triassic
start time: 251902000-
end time: 201400000-
sRGB color hex triplet: 812B92
different from: Trias
named by: Friedrich August von Alberti
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
IPA transcription: /traɪˈæsɪk/

Sources (4)

via Wikidata · CC0

Article · 中文

三叠纪（英語：Triassic，符号T）是2.51亿至2.01亿年前的一个地质时代，它位于二叠纪和侏罗纪之间，是中生代的第一个纪。三叠纪的开始和结束各以一次灭绝事件为标志。虽然这段时间的岩石标志非常明显和清晰，其开始和结束的准确时间却如同其它古远的地质时代无法非常精确地被确定。其误差在正负数百万年。三叠纪的名称是1834年起的，他将在中欧普遍存在的位于白色的石灰岩和黑色的页岩以及其间的红色的三层岩石层统称为三叠纪。今天，三叠纪被分成更多亚层。标志三叠纪的典型的红色说明当时的气候比较温暖干燥，没有任何冰川的迹象。今天一般认为当时在两极没有陆地或覆冰。因为当时地球上只有一个大陆，因此当时的海岸线比今天要短得多，三叠纪时遗留下来的近海沉积比较少，只有在西欧比较丰富。因此三叠纪的分层主要是依靠暗礁地带的生物化石来分的。由于三叠纪以一次灭绝事件的影響，原本的單支生物群开始輻射演化。

Abstract from DBpedia / Wikipedia · CC BY-SA