File:Mollweide_Paleographic_Map_of_Earth,_225_Ma_(Norian_Age).png · Wikimedia Commons · See Wikimedia Commons

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تریاس

Also known as Triassic Period, Triassic System

The Triassic (; sometimes symbolized as 🝈) is a geologic period and a stratigraphic system that spans 50.5 million years from the end of the Permian Period 251.902 Ma (million years ago) to the beginning of the Jurassic Period 201.4 Ma. The Triassic Period is the first and shortest geologic period of the Mesozoic Era, and the seventh period of the Phanerozoic Eon. The start and the end of the Triassic Period featured major extinction events.

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