Mesozoic

  • mesozoic era
    251.902–66 million years ago
    key events in the mesozoic
    -260 —
    -240 —
    -220 —
    -200 —
    -180 —
    -160 —
    -140 —
    -120 —
    -100 —
    -80 —
    -60 —
    paleozoic
    cenozoic
    triassic
    jurassic
    m
    e
    s
    o
    z
    o
    i
    c
    phanerozoic
    an approximate timescale of key mesozoic events.
    axis scale: millions of years ago.

    the mesozoic era ( -/ zoh-ik, mez-oh-, mess-, mee-zə-, -⁠zoh-, mee-sə-, -⁠soh-)[1][2] is an interval of geological time from about 252 to 66 million years ago. it is also called the age of reptiles and the age of conifers.[3]

    the mesozoic ("middle life") is one of three geologic eras of the phanerozoic eon, preceded by the paleozoic ("ancient life") and succeeded by the cenozoic ("new life"). the era is subdivided into three major periods: the triassic, jurassic, and cretaceous, which are further subdivided into a number of epochs and stages.

    the era began in the wake of the permian–triassic extinction event, the largest well-documented mass extinction in earth's history, and ended with the cretaceous–paleogene extinction event, another mass extinction whose victims included the non-avian dinosaurs. the mesozoic was a time of significant tectonic, climate, and evolutionary activity. the era witnessed the gradual rifting of the supercontinent pangaea into separate landmasses that would move into their current positions during the next era. the climate of the mesozoic was varied, alternating between warming and cooling periods. overall, however, the earth was hotter than it is today. dinosaurs first appeared in the mid-triassic, and became the dominant terrestrial vertebrates in the late triassic or early jurassic, occupying this position for about 150 or 135 million years until their demise at the end of the cretaceous. birds first appeared in the jurassic (however, true toothless birds appeared first in the cretaceous), having evolved from a branch of theropod dinosaurs. the first mammals also appeared during the mesozoic, but would remain small—less than 15 kg (33 lb)—until the cenozoic. the flowering plants (angiosperms) arose in the triassic or jurassic and came to prominence in the late cretaceous when they replaced the conifers and other gymnosperms as the dominant trees.

  • naming
  • geologic periods
  • paleogeography and tectonics
  • climate
  • life
  • see also
  • references
  • external links

Mesozoic Era
251.902–66 million years ago
Key events in the Mesozoic
-260 —
-240 —
-220 —
-200 —
-180 —
-160 —
-140 —
-120 —
-100 —
-80 —
-60 —
An approximate timescale of key Mesozoic events.
Axis scale: millions of years ago.

The Mesozoic Era ( -/ ZOH-ik, mez-oh-, mess-, mee-zə-, -⁠zoh-, mee-sə-, -⁠soh-)[1][2] is an interval of geological time from about 252 to 66 million years ago. It is also called the Age of Reptiles and the Age of Conifers.[3]

The Mesozoic ("middle life") is one of three geologic eras of the Phanerozoic Eon, preceded by the Paleozoic ("ancient life") and succeeded by the Cenozoic ("new life"). The era is subdivided into three major periods: the Triassic, Jurassic, and Cretaceous, which are further subdivided into a number of epochs and stages.

The era began in the wake of the Permian–Triassic extinction event, the largest well-documented mass extinction in Earth's history, and ended with the Cretaceous–Paleogene extinction event, another mass extinction whose victims included the non-avian dinosaurs. The Mesozoic was a time of significant tectonic, climate, and evolutionary activity. The era witnessed the gradual rifting of the supercontinent Pangaea into separate landmasses that would move into their current positions during the next era. The climate of the Mesozoic was varied, alternating between warming and cooling periods. Overall, however, the Earth was hotter than it is today. Dinosaurs first appeared in the Mid-Triassic, and became the dominant terrestrial vertebrates in the Late Triassic or Early Jurassic, occupying this position for about 150 or 135 million years until their demise at the end of the Cretaceous. Birds first appeared in the Jurassic (however, true toothless birds appeared first in the Cretaceous), having evolved from a branch of theropod dinosaurs. The first mammals also appeared during the Mesozoic, but would remain small—less than 15 kg (33 lb)—until the Cenozoic. The flowering plants (angiosperms) arose in the Triassic or Jurassic and came to prominence in the late Cretaceous when they replaced the conifers and other gymnosperms as the dominant trees.

Other Languages
Afrikaans: Mesosoïkum
Alemannisch: Mesozoikum
asturianu: Mesozoicu
azərbaycanca: Mezozoy
Bân-lâm-gú: Tiong-seng-tāi
беларуская: Мезазой
беларуская (тарашкевіца)‎: Мэзазой
български: Мезозой
bosanski: Mezozoik
brezhoneg: Mezozoeg
català: Mesozoic
Чӑвашла: Мезозой
čeština: Mezozoikum
Cymraeg: Mesosöig
dansk: Mesozoikum
Deutsch: Mesozoikum
eesti: Mesosoikum
español: Era Mesozoica
Esperanto: Mezozoiko
euskara: Mesozoikoa
français: Mésozoïque
Gaeilge: Méiseasóch
galego: Mesozoico
한국어: 중생대
hrvatski: Mezozoik
Bahasa Indonesia: Mesozoikum
íslenska: Miðlífsöld
italiano: Mesozoico
қазақша: Мезозой
Kreyòl ayisyen: È Mezozoyik
Latina: Mesozoicum
latviešu: Mezozojs
Lëtzebuergesch: Äerdmëttelalter
lietuvių: Mezozojus
magyar: Mezozoikum
македонски: Мезозоик
Bahasa Melayu: Mesozoik
Nederlands: Mesozoïcum
日本語: 中生代
Nordfriisk: Mesozoikum
norsk: Mesozoikum
norsk nynorsk: Mesozoikum
occitan: Mesozoïc
oʻzbekcha/ўзбекча: Mezozoy eratemasi
Piemontèis: Mesosòich
Plattdüütsch: Mesozoikum
polski: Mezozoik
português: Mesozoico
română: Mezozoic
русский: Мезозой
Scots: Mesozoic
Simple English: Mesozoic
slovenčina: Mezozoikum
slovenščina: Mezozoik
српски / srpski: Мезозоик
srpskohrvatski / српскохрватски: Mezozoik
svenska: Mesozoikum
Tagalog: Mesosoiko
Türkçe: Mezozoik
українська: Мезозойська ера
Tiếng Việt: Đại Trung sinh
Winaray: Mesozoic
吴语: 中生代
粵語: 中生代
中文: 中生代