Home›Geological Formations›Geological Age›TriassicEraTriassictry-ASS-ikPhanerozoicReference and ClassificationDevelopingThe Triassic is the first and shortest period of the Mesozoic Era, spanning about 251.902 to 201.4 million years ago. It began in the aftermath of the Permian-Triassic extinction and ended with the Triassic-Jurassic extinction event; archosaurs, including the early dinosaur lineages, were the chief terrestrial vertebrates while Pangaea began to rift apart late in the period. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/FactsTriassicConnectionsSourcesComments (0)Reader Challenges (0)FactsRankWell-attestedPeriod 1Start (Million Years Ago)Well-attested251.902 1Standard boundary age from the ICS International Chronostratigraphic Chart; not independently re-dated by this atlas.End (Million Years Ago)Well-attested201.4 1Standard boundary age from the ICS International Chronostratigraphic Chart; not independently re-dated by this atlas.Key EventWell-attestedReptiles, especially archosaurs, were the chief terrestrial vertebrates of the Triassic, against a mostly hot, dry global climate with deserts spanning much of Pangaea's interior. 1Defining EventWell-attestedMass Extinction 1TriassicFilter Results23 entriesFormation FamilyAllCanyons (1)Caves and Cave Systems (1)Columnar Basalt Formations (1)Fossil-Bearing Stratigraphic Formations (9)Gorges and Ravines (2)Islands and Archipelagos (filed here) (1)Mesozoic Fossil Sites (1)Mountain Ranges and Peaks (2)Named Scenic Rock and Cliff Formations (1)Valleys of Europe (2)Valleys of Oceania (1)Valleys of South America (1)Valleys of Southern and Western Europe (1)Valleys of the British Isles (1)Formation TypeAllCanyons (1)Caves and Cave Systems (1)Columnar Basalt Formations (1)Fossil-Bearing Stratigraphic Formations (9)Gorges and Ravines (2)Islands and Archipelagos (filed here) (1)Mesozoic Fossil Sites (1)Mountain Ranges and Peaks (2)Named Scenic Rock and Cliff Formations (1)Valleys of Oceania (1)Valleys of South America (1)Valleys of Southern and Western Europe (1)Valleys of the British Isles (1)WhereAllArgentina (1)Australia (3)China (1)Europe (1)France (3)Italy (2)Kazakhstan (1)Kyrgyzstan (1)Russia (1)Switzerland (1)United Kingdom (5)United States (5)Formed By (Process)AllErosion (7)Metamorphism (1)Orogeny (2)Sedimentation (8)Volcanism (1)Rock TypeAllConglomerate (1)Dolomite (1)Limestone (2)Sandstone (1)Shale (2)Protected StatusAllInternational Treaty Protected Area (1)Locally or Regionally Protected (3)National Monument or Landmark (1)National Park or Reserve (5)Natura 2000 Site (1)UNESCO Global Geopark (1)UNESCO World Heritage Site (3)DisciplineAllGeomorphology (12)Speleology (1)Stratigraphy (10)Show ResultsBrowseCompareSelect all 23Anchor ChurchTriassicBaïgorry ValleyTriassicBesano FormationTriassicBlue LiasTriassicChew ValleyTriassicChinle FormationTriassicDevils TowerTriassicDolomitesTriassicGrès à VoltziaTriassicGrose ValleyTriassicGuanling FormationTriassicHunter ValleyTriassicIschigualasto Provincial ParkTriassicJamison ValleyTriassicLias GroupTriassicMadygen FormationTriassicMercia Mudstone GroupTriassicMoenkopi FormationTriassicOuter HebridesTriassicPainted DesertTriassicUral MountainsTriassicVerdon GorgeTriassicWingate SandstoneTriassicConnectionsAssociated WithAnchor Church, Geological Formations Well-attested Source Anchor Church (Wikipedia)Baïgorry Valley, Geological Formations Well-attested Source Baïgorry Valley (Wikipedia)Besano Formation, Geological Formations Well-attested Source Besano Formation (Wikipedia)Blue Lias, Geological Formations Well-attested Source Blue Lias (Wikipedia)Chew Valley, Geological Formations Well-attested Source Chew Valley (Wikipedia)Chinle Formation, Geological Formations Well-attested Source Chinle Formation (Wikipedia)Devils Tower, Geological Formations Well-attested Source Wikipedia: Devils Tower - WikipediaDolomites, Geological Formations Well-attested Source Dolomites (Wikipedia)Grès à Voltzia, Geological Formations Well-attested Source Grès à Voltzia (Wikipedia)Grose Valley, Geological Formations Well-attested Source Grose Valley (Wikipedia)Guanling Formation, Geological Formations Well-attested Source Guanling Formation (Wikipedia)Hunter Valley, Geological Formations Well-attested Source Hunter Valley (Wikipedia)Ischigualasto Provincial Park, Geological Formations Well-attested Source Ischigualasto Provincial Park (Wikipedia)Jamison Valley, Geological Formations Well-attested Source Jamison Valley (Wikipedia)Lias Group, Geological Formations Well-attested Source Lias Group (Wikipedia)Madygen Formation, Geological Formations Well-attested Source Madygen Formation (Wikipedia)Mercia Mudstone Group, Geological Formations Well-attested Source Mercia Mudstone Group (Wikipedia)Moenkopi Formation, Geological Formations Well-attested Source Moenkopi Formation (Wikipedia)Outer Hebrides, Geological Formations Well-attested Source Outer Hebrides (Wikipedia)Painted Desert, Geological Formations Well-attested Source Painted Desert (Arizona) (Wikipedia)Permian-Triassic Extinction Event, Phenomena Well-attested Source Permian-Triassic Extinction Event (Wikipedia)Triassic-Jurassic Extinction Event, Phenomena Well-attested Source Triassic-Jurassic Extinction Event (Wikipedia)Ural Mountains, Geological Formations Well-attested Source Ural Mountains (Wikipedia)Verdon Gorge, Geological Formations Well-attested Source Verdon Gorge (Wikipedia)Wingate Sandstone, Geological Formations Well-attested Source Wingate Sandstone (Wikipedia)Has Geologic RankGeologic Period, Concepts Well-attested Precursor ToJurassic, Eras Well-attested Sources1. Triassic (Wikipedia)Wikimedia FoundationIntroductionThe Triassic Period is the first and shortest geologic period of the Mesozoic EraFauna and climateReptiles, especially archosaurs, were the chief terrestrial vertebrates during this timeClimateThe global climate during the Triassic was mostly hot and dry, with deserts spanning much of Pangaea's interiorClassificationTimespan (start)Timespan (end)Lead paragraphThe start and the end of the Triassic Period featured major extinction events.View the SourcePermian-Triassic Extinction Event (Wikipedia)Wikimedia FoundationAssociated With: Permian-Triassic Extinction EventView the SourceTriassic-Jurassic Extinction Event (Wikipedia)Wikimedia FoundationAssociated With: Triassic-Jurassic Extinction EventView the SourceChinle Formation (Wikipedia)Associated With: Chinle Formation, Lead paragraphThe Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the U.S. states of Nevada, Utah, northern Arizona, western New Mexico, and western Colorado.Associated With: Chinle Formation, Lead, age TriassicThe Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the U.S. states of Nevada, Utah, northern Arizona, western New Mexico, and western Colorado.View the SourceBlue Lias (Wikipedia)Associated With: Blue Lias, Lead paragraphThe Blue Lias consists of a sequence of limestone and shale layers, laid down in latest Triassic and early Jurassic times, between 195 and 200 million years ago.Associated With: Blue Lias, Lead, age TriassicThe Blue Lias consists of a sequence of limestone and shale layers, laid down in latest Triassic and early Jurassic times, between 195 and 200 million years ago.View the SourceMoenkopi Formation (Wikipedia)Associated With: Moenkopi Formation, Lead paragraphPart of the Colorado Plateau and Basin and Range, this red sandstone was laid down in the Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago.Associated With: Moenkopi Formation, Lead, age TriassicPart of the Colorado Plateau and Basin and Range, this red sandstone was laid down in the Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago.View the SourceGrès à Voltzia (Wikipedia)Associated With: Grès à Voltzia, Lead paragraphIt preserves fossils dating back to the Triassic period, more specifically the Anisian stage of the Middle Triassic epoch.Associated With: Grès à Voltzia, Lead, age TriassicIt preserves fossils dating back to the Triassic period, more specifically the Anisian stage of the Middle Triassic epoch.View the SourceAnchor Church (Wikipedia)Associated With: Anchor Church, Lead, age TriassicQuote, Associated With: Anchor Church, Lead, age TriassicAnchor Church is a series of caves in a Keuper Sandstone (Triassic conglomerate) outcrop, close to the village of Ingleby, Derbyshire, England.View the SourceBaïgorry Valley (Wikipedia)Associated With: Baïgorry Valley, Article text, age TriassicQuote, Associated With: Baïgorry Valley, Article text, age TriassicTo the northwest, the watershed dividing the Nive and Bidassoa river basins follows the crest of a Permian-Triassic cuesta in the Baztan region, formed of pink sandstone.View the SourceBesano Formation (Wikipedia)Associated With: Besano Formation, Lead, age TriassicQuote, Associated With: Besano Formation, Lead, age TriassicThis formation, a thin but fossiliferous succession of dolomite and black shale, is famous for its preservation of Middle Triassic (Anisian-Ladinian) marine life including fish and aquatic reptiles.View the SourceChew Valley (Wikipedia)Associated With: Chew Valley, Article text, age TriassicQuote, Associated With: Chew Valley, Article text, age TriassicClifton Down Limestone, which includes calcite and dolomitic mudstones of the Carboniferous period, is found in the adjoining central band and dolomitic conglomerate of the Triassic period.View the SourceWikipedia: Devils Tower - WikipediaAssociated With: Devils Tower, Article text, age TriassicQuote, Associated With: Devils Tower, Article text, age TriassicThe oldest rocks visible in Devils Tower National Monument were laid down in a shallow sea during the Triassic.View the SourceGrose Valley (Wikipedia)Associated With: Grose Valley, Article text, age TriassicQuote, Associated With: Grose Valley, Article text, age TriassicThe geology of the area consists of Triassic sandstones and underlying Permian sedimentary rocks.View the SourceGuanling Formation (Wikipedia)Associated With: Guanling Formation, Lead, age TriassicQuote, Associated With: Guanling Formation, Lead, age TriassicThe Guanling Formation is a Middle Triassic (Anisian or Pelsonian in the regional chronostratigraphy) geologic formation in southwestern China.View the SourceHunter Valley (Wikipedia)Associated With: Hunter Valley, Article text, age TriassicQuote, Associated With: Hunter Valley, Article text, age TriassicThe further north and west, towards the Brokenback Range and the Upper Hunter, the more Triassic sandstone that can be found leading eventually to the carboniferous rocks that form the northern boundary of the Hunter with the New England Fold Belt and the foothills of the Barrington Tops.View the SourceIschigualasto Provincial Park (Wikipedia)Associated With: Ischigualasto Provincial Park, Article text, age TriassicQuote, Associated With: Ischigualasto Provincial Park, Article text, age TriassicThe Ischigualasto Formation contains Late Triassic (Carnian) deposits (231.4 -225.9 million years before the present), with some of the oldest known dinosaur remains, which are the world's foremost with regards to quality, number and importance.View the SourceLias Group (Wikipedia)Associated With: Lias Group, Lead, age TriassicQuote, Associated With: Lias Group, Lead, age Triassic20 million years between 200 to 180 million years ago) and thus also includes a part of the Triassic.View the SourceMadygen Formation (Wikipedia)Associated With: Madygen Formation, Lead, age TriassicQuote, Associated With: Madygen Formation, Lead, age TriassicThe Madygen Formation (Russian: Madygen Svita) is a Middle-Late Triassic (Ladinian-Carnian) geologic formation and lagerstätte in the Batken and Osh Regions of western Kyrgyzstan, with minor outcrops in neighboring Tajikistan and Uzbekistan.View the SourceMercia Mudstone Group (Wikipedia)Associated With: Mercia Mudstone Group, Lead, age TriassicQuote, Associated With: Mercia Mudstone Group, Lead, age TriassicThe Mercia Mudstone Group is a middle to late Triassic lithostratigraphic group (a sequence of rock strata) which is widespread in Britain, especially in the English Midlands-the name is derived from the ancient kingdom of Mercia which corresponds to that area.View the SourceOuter Hebrides (Wikipedia)Associated With: Outer Hebrides, Article text, age TriassicQuote, Associated With: Outer Hebrides, Article text, age TriassicThere are relatively small outcrops of Triassic sandstone at Broad Bay near Stornoway.View the SourcePainted Desert (Arizona) (Wikipedia)Associated With: Painted Desert, Article text, age TriassicQuote, Associated With: Painted Desert, Article text, age TriassicThe desert is composed of stratified layers of siltstone, mudstone, and shale of the Triassic Chinle Formation, which erode easily.View the SourceUral Mountains (Wikipedia)Associated With: Ural Mountains, Article text, age TriassicQuote, Associated With: Ural Mountains, Article text, age TriassicThe collision lasted nearly 90 million years in the late Carboniferous, early Triassic.View the SourceVerdon Gorge (Wikipedia)Associated With: Verdon Gorge, Article text, age TriassicQuote, Associated With: Verdon Gorge, Article text, age TriassicDuring the Triassic period, the Provence subsided and was covered by the sea, leaving thick layers of various limestone deposits.View the SourceWingate Sandstone (Wikipedia)Associated With: Wingate Sandstone, Article text, age TriassicQuote, Associated With: Wingate Sandstone, Article text, age TriassicWingate layers are typically pale orange to red in color, the remnants of wind-born sand dunes deposited approximately 200 million years ago in the Late Triassic.View the SourceDolomites (Wikipedia)Associated With: Dolomites, Infobox: ageQuote, Associated With: Dolomites, Infobox: ageMostly TriassicView the SourceJamison Valley (Wikipedia)Associated With: Jamison Valley, Infobox: ageQuote, Associated With: Jamison Valley, Infobox: ageTriassicView the SourceComments (0)No comments yet. 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