Plants Paleozoic Geological Era

Life two great animal faunas dominated the seas during the paleozoic.

Plants paleozoic geological era. Paleozoic era also spelled palaeozoic major interval of geologic time that began 541 million years ago with the cambrian explosion an extraordinary diversification of marine animals and ended about 252 million years ago with the end permian extinction the greatest extinction event in earth history. The paleozoic was a time of dramatic geological climatic and evolutionary change. Out of the three geological eras the paleozoic era is the earliest of all. The cambrian witnessed the most rapid and widespread diversification of life in earth s history known as the cambrian explosion in which most modern phyla first appeared.

The cambrian period witnessed the most rapid and widespread diversification of life in earth s history known as the cambrian explosion in which most modern phyla first appeared. The paleozoic is bracketed by two of the most important events in the history of animal life. At the other end of the paleozoic the largest mass extinction in history wiped out approximately 90 of all marine animal species. At its beginning multicelled animals underwent a dramatic explosion in diversity and almost all living animal phyla appeared within a few millions of years.

Paleozoic definition is of relating to originating in or being an era of geological history that extends from the beginning of the cambrian to the close of the permian and is marked by the culmination of nearly all classes of invertebrates except the insects and in the later epochs by the appearance of terrestrial plants amphibians and reptiles. The cambrian fauna typified the cambrian oceans. Although members of most phyla were present during the cambrian the seas were dominated by trilobites inarticulate brachiopods monoplacophoran molluscs hyolithids small shelly fossils of uncertain systematic posiiton and archaeocyathids. The paleozoic comes after the neoproterozoic era of the proterozoic eon and is followed by the mesozoic era.

The cambrian period saw the explosion of new kinds of invertebrate animals in the oceans including trilobites figure 2 primitive kinds of shellfish including brachiopods and molluscs and other groups of invertebrates that failed to survive. Relating to the corresponding. The paleozoic era which ran from about 542 million years ago to 251 million years ago was a time of great change on earth the era began with the breakup of one supercontinent and the formation of another. Read this sciencestruck article to gain more information about this era on earth along with the respective major geological events and related facts.

The major divisions of the paleozoic era from oldest to youngest are the cambrian 541. The paleozoic comes after the neoproterozoic era of the proterozoic eon and is followed by the mesozoic era. The paleozoic era is one of the most important geological divisions of our planet s geochronological timescale as it marks the extensive evolution of life along with the largest mass extinction. And the first vertebrate animals colonized land.