Triassic

E38909

The Triassic was the first period of the Mesozoic Era, marked by the initial diversification of dinosaurs and the recovery of life following the Permian–Triassic mass extinction.

All labels observed (7)

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf chronostratigraphic unit
epoch
epoch
epoch
geologic period
mass extinction
associatedWith Panthalassa Ocean
linked to: World Ocean

Tethys Ocean
supercontinent Pangaea
beginsAfter Permian–Triassic mass extinction
characterizedBy appearance of first true mammals
diversification of ammonoids
diversification of marine reptiles
dominance of conifers
dominance of synapsid therapsids in early Triassic
evolution of early lissamphibians
evolution of early turtles
evolution of first flying vertebrates pterosaurs
expansion of gymnosperm forests
initial diversification of dinosaurs
low diversity but high abundance of some disaster taxa in Early Triassic
monsoonal climate patterns on Pangaea margins
origin of modern-style coral reefs
presence of ichthyosaurs
presence of sauropterygians such as plesiosaurs ancestors
presence of seed ferns
radiation of archosaurs
recovery of coral reef ecosystems by Middle to Late Triassic
recovery of marine ecosystems
recovery of terrestrial ecosystems
rise of crocodile-line archosaurs
widespread arid continental climates
duration about 51 million years
end approximately 201 million years ago
endsWith Triassic–Jurassic extinction event
follows Permian
GSSP Kuhjoch section Austria for base of Jurassic and top of Triassic
Meishan section China for base of Triassic
lowerBoundaryDefinedBy first appearance of conodont Hindeodus parvus
nameCoinedIn 1834
namedBy Friedrich von Alberti
nameRefersTo threefold division of Germanic Trias red beds limestones and evaporites
partOf Mesozoic Era
precedes Jurassic
recognizedBy International Commission on Stratigraphy
start approximately 252 million years ago
subdividedInto Early Triassic
linked to: Triassic

Late Triassic
Middle Triassic
upperBoundaryDefinedBy first appearance of ammonite Psiloceras spelae tirolicum

How these facts were elicited

Referenced by (29)

Full triples — surface form annotated when it differs from this entity's canonical label.

Jurassic precededBy Triassic
Jurassic Period follows Triassic Period
linked to: Triassic
Mesozoic Era hasPart Triassic Period
linked to: Triassic
Phanerozoic Eon contains Triassic Period
linked to: Triassic
Triassic subdividedInto Early Triassic
linked to: Triassic
International Chronostratigraphic Chart includes Triassic Period
linked to: Triassic
Walking with Dinosaurs setInPeriod Triassic
Permian–Triassic mass extinction marksBoundaryBetween Triassic period
linked to: Triassic
Jessica Whiteside studiesPeriod Triassic Period
linked to: Triassic
Permian Period precedes Triassic Period
linked to: Triassic
Jurassic Coast geologicalTimeSpan Triassic period
linked to: Triassic
Metacomet Ridge formedDuring Triassic period
linked to: Triassic
Pangaea associatedWith Triassic period
subject linked to: supercontinent Pangaea
linked to: Triassic
Middle Triassic partOf Triassic Period
linked to: Triassic
Tethys Ocean existedDuring Triassic period
linked to: Triassic
Triassic–Jurassic extinction event occursAtBoundaryOf Triassic Period
linked to: Triassic
Friedrich von Alberti knownFor coining the term "Trias" for Triassic
linked to: Triassic
Walking with Dinosaurs: The Live Experience depicts Triassic period
linked to: Triassic
Archosauria firstAppearance Early Triassic
linked to: Triassic
Newark Basin hasGeologicAge Triassic
Narrabeen Group age Early Triassic
linked to: Triassic
Wianamatta Group chronostratigraphicUnit Triassic System
linked to: Triassic
Lopingian Epoch precedes Early Triassic Epoch
linked to: Triassic
Bowen Basin geologicalPeriod Triassic