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What life form that lived during the Paleozoic period is an important index fossil?
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∙ 9y ago
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.
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∙ 9y ago
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Did the first vertebrates evolve during the mesozoic era?
No. The 1st vertebrates appeared in the fossil record about 525 million years ago during the Cambrian Period. This was in the Paleozoic Era.
What geologic time period was the trilobite fossil associated?
Trilobites were associated with the Paleozoic era, from the Cambrian to the Permian.
During what time period did shallow seas cover much of the land?
The Cambrian period of the Paleozoic era ;)
What did the earths surface look like in the devonian time period?
During the devonian time period most of land was under water.
What is the silaurian period?
The Paleozoic Era.
Did the first vertebrates evolve during the mesozoic era?
No. The 1st vertebrates appeared in the fossil record about 525 million years ago during the Cambrian Period. This was in the Paleozoic Era.
What geologic time period was the trilobite fossil associated?
Trilobites were associated with the Paleozoic era, from the Cambrian to the Permian.
What is the last period of the Paleozoic Era?
The Permian period is the last period of the Paleozoic era
During what time period did shallow seas cover much of the land?
The Cambrian period of the Paleozoic era ;)
What is the 1st period in the Paleozoic Era?
The first period in the Paleozoic Era was the Cambrian.
What group of fossil organisms was alive during the Paleozoic Era but did not live in any other time period 1 Dinosaurs 2 Brachiopods 3 Trilobites 4 Corals?
The Pene potator organism group.
What is the longest period?
Paleozoic Period
The fossil of the first known reptile dates back to the?
The fossils of the earliest reptiles are about 320 million years old. They date back to the Carboniferous period. The Carboniferous was a period in the Paleozoic era.
How old is the elliptocephala fossil?
It is between 488 and 542 million years old. It is in the middle epoch of the Cambrian period. It is in the paleozoic era and the phanerozoic eon.
Insects thrived during which period?
Insects thrived during the Permian period. The Permian period lasted from 299 to 251 million years ago and it was between the Paleozoic and the Mesozoic periods.
What is a sentence using the word Cambrian?
This refers to a period of time during the Paleozoic Era. Here are some sentences.The Cambrian Period was the first 65 million years of the Paleozoic Era.Trilobites flourished during the Cambrian.The Cambrian was characterized by warm seas and deserts on land.
Which one of the following times would be the longest Jurassic period carboniferous period paleozoic era mesozoic?
The Paleozoic
