+
Paleozoic Era

Paleozoic Era

Author: Nathan Lampson
Description:
This lesson illustrates the paleozoic era of the history of the earth.
(more)
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

25 Sophia partners guarantee credit transfer.

221 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 20 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

 

The paleozoic era was a period of time 251-542 million years ago.  During the paleozoic era, vertebrates (animals with backbones) began to diverge.  A number of various organisms were found for the first time; tetrapods, insects, and the first vascular plants appeared around this time.  An explosion of different types of animals occurred during the paleozoic -- the land was colonized by plants and invertebrates as well.

 

At the end of the paleozoic era a mass extinction took place.