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The Silurian went from 443.4 ± 1.5mya to 419.2 ± 3.2mya. It spanned from the conclusion of the Ordovician period to the beginning of the Devonian period. However the exact time frame of the Silurian period is unknown and could be off by millions of years because of the fact that that period was set during a significant extinction event. Therefore, the Silurian period lasted about 42 million years, give or take.
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∙ 10y ago
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∙ 14y agoThe Silurian was 443 to 417 million years ago.
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∙ 15y agoThe Ordovician Period of the Paleozoic Era lasted from about 490 million to 443 million years ago.
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∙ 15y agoThe Silurian Period started 443 million years ago and ended and 417 million years ago.
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∙ 13y agoIt was a geological period about 444 million years ago. also see Ordovician-Silurian extinction events.
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Which conclusion about Paradoxides male area is supported by the information in the table?
Life forms existed during the Cambrian period.
What type of life forms existed on earth?
human beings
Describe life as it existed in precambrian time?
During this time, simple anaerobic forms of life appeared and were followed by photosynthetic forms, which added oxygen to the atmosphere. Aerobic forms of life evolved, and eukaryotes appeared. Some of those organisms gave rise to multicellular forms that continued to increase in complexity. Few fossils exist from this time because the animals were all soft-bodied. Life existed only in the sea.
What life form that lived during the Paleozoic period is an important index fossil?
The life forms that lived during the Paleozoic are Permian, the Carboniferous, (both the Mississippian and the Pennsylvanian), the Devonian,the Silurian, the Ordovician, the Cambrian, and the Precambrian. The Paleozoic Era lasted from 570 to 225 Million Years Ago. Complex forms of life appear. During this 345 million year period, plants and animals underwent rapid evolution.The Paleozoic era lasted about 345 million years. It includes the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian periods. Index fossils of the first half of the Paleozoic era are those of invertebrates, such as trilobites, graptolites, and crinoids. Remains of plants and such vertebrates as fish and reptiles make up the index fossils of the second half of this era.
What is the numerical age of the bedrock around Syracuse?
Period- Silurian Epoch- Late 416m/Early 444million years ago Life on Earth- Earliest insects, Earliest land, plants, and animals. Abundant eurypterids
Why were corals a dominant life-form during the silurian period?
fish
Which conclusion about Paradoxides male area is supported by the information in the table?
Life forms existed during the Cambrian period.
What was the evolutionary process during Silurian?
The Silurian period started off with a mass extinction of 60% of all marine life. During the Silurian bony fishes evolved setting the stage for the Devonian, which is referred to as the "Age of the Fish".
During the Silurian period the first animals to adapt to life on land were?
Arthropods ( EARTH SCIENCE )
Why are corals a dominant lifeforms on Earth during the Silurian period?
Corals were a dominate life form during the Silurian period because the climate was much warmer in the oceans and the ocean's were actually larger than they are today. This gave coral a chance to grow large and strong.
What type of life forms existed on earth?
human beings
What is the meaning of paleozoic?
Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the Silurian, Devonian, and Carboniferous ages, and also to the life or rocks of those ages. See Chart of Geology.
The geological time scale divided up and organized according to what life forms existed on earth?
correct. The geological time scale is divided up and organized according to what life forms existed on earth. So basically yes.
Describe life as it existed in precambrian time?
During this time, simple anaerobic forms of life appeared and were followed by photosynthetic forms, which added oxygen to the atmosphere. Aerobic forms of life evolved, and eukaryotes appeared. Some of those organisms gave rise to multicellular forms that continued to increase in complexity. Few fossils exist from this time because the animals were all soft-bodied. Life existed only in the sea.
What life form that lived during the Paleozoic period is an important index fossil?
The life forms that lived during the Paleozoic are Permian, the Carboniferous, (both the Mississippian and the Pennsylvanian), the Devonian,the Silurian, the Ordovician, the Cambrian, and the Precambrian. The Paleozoic Era lasted from 570 to 225 Million Years Ago. Complex forms of life appear. During this 345 million year period, plants and animals underwent rapid evolution.The Paleozoic era lasted about 345 million years. It includes the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian periods. Index fossils of the first half of the Paleozoic era are those of invertebrates, such as trilobites, graptolites, and crinoids. Remains of plants and such vertebrates as fish and reptiles make up the index fossils of the second half of this era.
What life forms evolved during the Permian period?
gymnosperms
Were there plants in the Cambrian time period?
No. Primitive algae existed but true plants did not. There was no life on land in the Cambrian.
