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Cambrian Series 3 Series
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Cambrian Series 3 Series

stratigraphy
Also known as: Upper Cambrian Series
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Quick Summary

The Cambrian Series 3 is a stratigraphic subdivision of the Cambrian Period, spanning approximately 509 million to 497 million years ago. This series is part of the larger Cambrian System, which is characterized by the earliest abundant and diverse fossil record of animal life.12

Key aspects of Cambrian Series 3 include:
* Stratigraphic Placement: It is the second of three stages within Series 3 of the Cambrian System. The Drumian Stage, a part of Series 3, is dated from approximately 504.5 to 500.5 million years ago.3
* Fossil Significance: The Cambrian Period, including Series 3, marks the "Cambrian explosion," a rapid diversification of animal life and the appearance of most animal phyla with fossil records.42
* Geological Context: During the Cambrian, Earth experienced significant continental drift and rising sea levels, which created vast shallow marine environments conducive to life's diversification.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
6 Britannica Sources
  1. Cambrian Period - Fossil record of the Precambrian-Cambrian transition
  2. Cambrian Period
  3. Paleozoic Era
  4. Cambrian Period - Types and distribution
  5. Cambrian Period - Boundaries and subdivisions of the Cambrian System
  6. Drumian Stage

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