Vertebrates and anthropods in land were dying and reproduction rates were falling. With a drop in oxygen levels in the waters marine life also suffered a large decline. The ocean reefs suffered the largest impact as 4,999,000 square kilometers died by the end.
- https://ebookcentral.proquest.com/lib/ucf/reader.action?docID=980015&ppg=589&pq-origsite=primo
- https://ebookcentral.proquest.com/lib/ucf/reader.action?docID=1192011
Sources
- Known as the Age of Fishes
- A Devonian year had 400 days that were 22 hours long
- Divided into the Lower, Middle, and Upper Series
- Fourth period in the Paleozoic era
- The evolution of fish into tetrapods occured
- First seed bearing plants spread
Devonian Period
Late Devonian Extinctions
The period was known for the greatest diversity of marine life, as well as, a peak of reef growth. Vascular plants and tetrapods began to appear in the Middle Devonian.
This was a period of very high sea levels and equable climates. Also known for the greatest amount of carbonate production.
Living Organisms
Climate & Atmosphere
Fun Facts
419.2-358.9 MYA
