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Asked in Science
Why is Paleozoic era the longest time?
The Precambrian is actually the longest block (division) of time in earth geological history. But the Paleozoic era is the longest of the three "eras". The paleozoic era started about 550 million years ago and is marked by the appearance of abundant invertebrate life in the oceans. The paleozoic era ended about 225 million years ago with the forming of the supercontinent Pangaea. ...
Asked in Ancient History
Second Era in geologic time?
The Paleozoic Era was the second in geological time. It was between 541 to 251 million years ago. Phyla, fish, arthropods reptiles and amphibians all evolved during the Paleozoic era. The end of the Paleozoic period ended with the largest mass extinction in history. ...
Asked in Geology
Which describes the correct order of the geologic time scale from oldest to most recent?
A. Precambrian Time - Paleozoic Era - Mesozoic Era - Cenozoic Era B. Cenozoic Era - Paleozoic Era - Mesozoic Era - Precambrian Time C. Mesozoic Era - Paleozoic Era - Precambrian Time - Cenozoic Era D. Paleozoic Era - Precambrian Time - Mesozoic Era - Cenozoic Era ...
Asked in Geology
Differentiate preCambrian era and paleozoic era?
The Precambrian is a longer span of geologic time leading up the the Paleozoic era. During the Cambrian period of the Paleozoic era, there was an explosion in the evolution of life forms. In the Precambrian, life was restricted to the sea. In the Paleozoic, life began on land. ...
What is the era after the Paleozoic?
The Paleozoic era was from 540 million years ago to about 245 million years ago. After that came the Mesozoic era, and that lasted from the end of the Paleozoic to 65 million years ago, when the earth entered the Cenozoic era. ...