Ordovician Period
Major Event
Fun Facts
Animals
Climate
References
https://www.nationalgeographic.com/science/article/ordovician
https://natmus.humboldt.edu/exhibits/life-through-time/visual-timeline/ordovician-period
Ordovician Climate
The Ordovician Period ushered in significant changes in plate tectonics, climate, and biological systems. Rapid seafloor spreading at oceanic ridges fostered some of the highest global sea levels in the Phanerozoic Eon.
Preserved Ordovician soils suggest that atmospheric levels of carbon dioxide during the period were 14–16 times higher than today. These high levels were driven by widespread volcanic activity, which would have released large volumes of carbon dioxide into the atmosphere.
The extensive flooding of continents due to high sea levels, combined with the lack of widespread vegetation on land, would have suppressed the weathering of silicate rocks, a major mechanism for removing carbon dioxide from the atmosphere.
Ordovician Animals
Since the earth was prodominently sea, marine life flouirished to an absense of land animal life. Sea animals of the time included corals, bryozoans, brachiopods, mollusks, echinoderms, graptolites, and conodonts
Ordovician-Silurian Extinction Event
It's likely caused by the massive growth of ancient mosses that ate up a lot of CO2 in the atmosphere which caused an ice age. This wiped out 86% of marine life
Ordovician Facts
- Most of the world's landmasses came together to create the supercontinent of Gondwana
- Sea levels rose as much as 1,970 feet (600 meters) above those of today.
- Fish of the time period were small and had downward-pointing, jawless mouths, indicating they lived by sucking and filtering food from the seabed. Bony shields covered the front of their bodies
- Horseshoe crabs roamed in shallow waters
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Ordovician Period Project
Robert Ives
Created on February 19, 2024
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Transcript
Ordovician Period
Major Event
Fun Facts
Animals
Climate
References
https://www.nationalgeographic.com/science/article/ordovician
https://natmus.humboldt.edu/exhibits/life-through-time/visual-timeline/ordovician-period
Ordovician Climate
The Ordovician Period ushered in significant changes in plate tectonics, climate, and biological systems. Rapid seafloor spreading at oceanic ridges fostered some of the highest global sea levels in the Phanerozoic Eon.
Preserved Ordovician soils suggest that atmospheric levels of carbon dioxide during the period were 14–16 times higher than today. These high levels were driven by widespread volcanic activity, which would have released large volumes of carbon dioxide into the atmosphere.
The extensive flooding of continents due to high sea levels, combined with the lack of widespread vegetation on land, would have suppressed the weathering of silicate rocks, a major mechanism for removing carbon dioxide from the atmosphere.
Ordovician Animals
Since the earth was prodominently sea, marine life flouirished to an absense of land animal life. Sea animals of the time included corals, bryozoans, brachiopods, mollusks, echinoderms, graptolites, and conodonts
Ordovician-Silurian Extinction Event
It's likely caused by the massive growth of ancient mosses that ate up a lot of CO2 in the atmosphere which caused an ice age. This wiped out 86% of marine life
Ordovician Facts
Got an idea?
Bring it to life with an interactive window
Create a new layer with all the Genially features.