Triassic

The Triassic is the first geological period in the Mesozoic era. It lasted 50 million years. The period began 252.17 million years ago, and ended 201.3 million years ago.[1]

The period before the Triassic was the Permian period, the last period in the Palaeozoic era. The Jurassic period came after the Triassic.[1]

Many new groups arose during the Triassic period, including the dinosaurs and the first mammals.[2]

Extinction events

Great extinction events happened at both the beginning and end of the Triassic period. The Triassic began after the great extinction at the end of the Palaeozoic era, the Permian/Triassic extinction event. Nobody really knows the exact cause of the Permian/Triassic extinction, but many experts have different theories. Generally, experts agree that many things caused the extinction.[3][4]

The Triassic had several more extinction events, whose causes are also unknown. The most significant of these took place at the end of the Triassic, which was one of the 'big five' Phanerozoic marine extinctions.[5][6]

Other Languages
Afrikaans: Trias
Alemannisch: Trias (Geologie)
العربية: عصر ثلاثي
asturianu: Triásicu
azərbaycanca: Trias dövrü
Bân-lâm-gú: Trias-kí
беларуская: Трыясавы перыяд
беларуская (тарашкевіца)‎: Трыяс
български: Триас
bosanski: Trijas
brezhoneg: Triaseg
català: Triàsic
čeština: Trias
Cymraeg: Triasig
dansk: Trias
eesti: Triias
English: Triassic
español: Triásico
Esperanto: Triaso
euskara: Triasiko
فارسی: تریاس
français: Trias
Gaeilge: Triasach
galego: Triásico
hrvatski: Trijas
Ido: Triaso
Bahasa Indonesia: Trias
italiano: Triassico
עברית: טריאס
қазақша: Триас дәуірі
Кыргызча: Триас мезгили
Latina: Triassicum
latviešu: Triass
Lëtzebuergesch: Trias
lietuvių: Triasas
magyar: Triász
مازِرونی: تریاس
Bahasa Melayu: Trias
Mìng-dĕ̤ng-ngṳ̄: Triassic
Nederlands: Trias
日本語: 三畳紀
norsk: Trias
norsk nynorsk: Trias
occitan: Triassic
oʻzbekcha/ўзбекча: Trias sistemasi
پنجابی: ٹرائیسک
Piemontèis: Triàssich
Plattdüütsch: Trias (Geologie)
polski: Trias
português: Triássico
română: Triasic
саха тыла: Триас
Scots: Triassic
slovenčina: Trias
slovenščina: Trias
српски / srpski: Тријас
srpskohrvatski / српскохрватски: Trijas
suomi: Triaskausi
svenska: Trias
Tagalog: Triassic
татарча/tatarça: Триас
Türkçe: Trias Devri
українська: Тріасовий період
Tiếng Việt: Kỷ Trias
文言: 三疊紀
粵語: 三疊紀
中文: 三叠纪