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The major geologic event in the Jurassic Period was the continuing breakup of Pangaea.
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This is correct, but I found a more detailed answer on the second paragraph on
http://science.nationalgeographic.com/science/prehistoric-world/jurassic.html
During the Triassic period, major geologic events included the breakup of the supercontinent Pangaea, which led to the opening of the Atlantic Ocean, extensive volcanic activity that formed new mountain ranges and contributed to climate change, and mass extinctions that reshaped ecosystems and allowed dinosaurs to diversify and dominate.
the Harland three-fold division of the Cretaceous into Neocomian, Gallic, and Senonian Epochs:
"Neocomian" division is based largely on climatic considerations. This "Early Early Cretaceous" demi-epoch was a time of steadily rising seas and temperatures.
The Early Late Cretaceous ("High Cretaceous") was marked by several critical events. The first was the widening Atlantic rift. The Atlantic Ocean: (a) had become wide enough to become a complete barrier to east-west dispersal over its entire length, except in the far north, and (b) was circulating meaningful amounts of ocean water north and south. The initial results seem somewhat paradoxical.
On the one hand, the High Cretaceous experienced unprecedented uniformity of ocean temperatures from pole to pole, suggesting very good horizontal mixing of ocean waters. On the other hand, it is well known for sporadic deep ocean anoxia, which would indicate poor vertical mixing.
Cretaceous Period (145.5 to 65.5 mya) :
- Period of Active Crust Plate Movements
- Africa and India separate from Antarctica (125 mya)
- Global warming event starts (120 mya)
Carbon dioxide levels were 550 to 590 ppm [27]
- Flowering plants (angiosperms) appeared
- Crocodiles appeared (110 mya)
- South America breaks away from Africa (105 mya)
- Formation of the Atlantic Ocean
- Earth has no polar ice
- Modern mammals and birds developed
- 100 mya: Earth's magnetic field is
3 times stronger than today.
- Global warming event ends (90 mya)
- 70 mya: Tyrannosaurus rex thrived
- 65 mya: Meteor impact, 170 km crater
Chicxulub, Yucatan, Mexico [9]
- 65 mya: Deccan Traps volcanic eruptions in India
produce great volume of lava and gases.
- * Mass extinction of 80-90% of marine species
and 85% of land species, including the dinosaurs
Pangaea was breaking up and the contents were breaking up. R.L.J
No major geologic events I can recall took place during this time except a large mass of extinction. That is, if that's considered geologic.
the cretaceous time period also brought new forms of life like the flowering plants you see today
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Were there Plant during the triassic?
yes there were plants during this time period. there were trees
Was era or period longer?
On the geologic time scale, an era is longer than a period. There are 12 geologic eras in total and they are composed of geologic periods. For instance, the Mesozoic era is composed of the Triassic, Jurassic and Cretaceous periods.
What were the major geologic events of devonian period?
there was plate tectonic movement
What geologic period was pangaea assembled?
Pangaea was assembled during the late Paleozoic era, specifically during the Carboniferous and Permian periods. This supercontinent began to break apart during the Mesozoic era.
How was the Triassic period a transitional time period during the Mesozoic era?
I believe that dont know
Which of the following is not a geologic period of the Earth Jurassic Cretaceous Triassic Neoprene?
Neoprene is not a geologic period of the Earth. The Jurassic, Cretaceous, and Triassic are all recognized geologic periods that represent different intervals of time in the Earth's history.
Which came first the Jurassic or Triassic period of geologic time?
The Triassic period came before the Jurassic period in geologic time. The Triassic period lasted from around 251 million to 201 million years ago, followed by the Jurassic period, which lasted from around 201 million to 145 million years ago.
What are the major geologic events in the Permian period?
During the Permian period, major geologic events included the assembly of the supercontinent Pangaea, significant climatic changes leading to glaciation and warming events, and massive volcanic activity resulting in the formation of the Siberian Traps. These events had significant impacts on biodiversity and led to the largest extinction event in Earth's history, known as the Permian-Triassic mass extinction.
Which geologic period gave rise to the climax of dinosaurs and ammonoids?
Dinosaurs and ammonoids appeared in the Triassic period.
What Geological Period preceded the Jurassic Period?
The Triassic Period preceded the Jurassic Period in the geologic timescale.
What are the major geologic events in the triassic period?
Not much happened really except i think it was climate change and small dinos running around, the size of a chicken. (No im not kidding)
Did the thrinaxodon go extinct during the End Triassic extinction?
Thrinaxodon lived during the Triassic Period. They died out about 245 million years ago, at the end of the Olenekian portion of the Triassic period.
What Mammals first appeared during the .?
Triassic Period! :)
Were there Plant during the triassic?
yes there were plants during this time period. there were trees
Did apple tree exist in the triassic period?
No. Fruit trees first appeared during the Cretaceous, two periods after the Triassic. The only trees in the Triassic were conifers.
Was era or period longer?
On the geologic time scale, an era is longer than a period. There are 12 geologic eras in total and they are composed of geologic periods. For instance, the Mesozoic era is composed of the Triassic, Jurassic and Cretaceous periods.
What were the major geologic events of devonian period?
there was plate tectonic movement
