Geological time by: isabel


Archean began 2.5 billion years ago and ended 542.0 million years ago. The atmosphere was mainly carbon dioxide with very little oxygen in it. Around the beginning of the Archaean Eon, the earliest living cells formed on Earth. Once a lot of cells were photosynthesizing there started to be more and more oxygen on Earth. But during the Archaean Eon almost none of that oxygen was in the atmosphere.


The Paleozoic Era took place around 542.0 to 251.0 mya.


Gymnosperms were the dominant plant. During the Permian, there were many animals, including Edaphosaurus, Dimetrodon, and other pelycosaurs; Eryops, Diplocaulus, archosaurs, amphibians, fish, and lots of invertebrates.


There were metazoan phylum, sponge spicules, probable worm tubes, coralline red algae, and dasyclad green algae all flourished during this time period

Created By
Isabel Melchor


Created with images by Kiran Kumar G - "Life" • James St. John - "Twin Lakes area along the Beartooth Highway (Beartooth Mountains, northwestern Wyoming, USA)" • Trailmix.Net - "Trilobite" • Grand Canyon NPS - "Grand Canyon National Park- Toroweap Formation_0936" • Grand Canyon NPS - "Grand Canyon: Tapeats sandstone 0113b"

Made with Adobe Slate

Make your words and images move.

Get Slate

Report Abuse

If you feel that this video content violates the Adobe Terms of Use, you may report this content by filling out this quick form.

To report a Copyright Violation, please follow Section 17 in the Terms of Use.