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BASIC ONE PAGER

Trevor Feilmeier

Created on October 1, 2023

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Transcript

Living Organisms

Climate & Atmosphere

Devonian Period

This was a period of very high sea levels and equable climates. Also known for the greatest amount of carbonate production.

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.

419.2-358.9 MYA

Fun Facts

  • 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

Late Devonian Extinctions

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.

Sources
  • 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