Cambrian Series 2 Series
Quick Summary
Cambrian Series 2 is a stratigraphic subdivision of the Cambrian Period, spanning from approximately 521 to 509 million years ago. This period is characterized by significant evolutionary developments, often referred to as the Cambrian explosion, where most animal phyla with fossil records first appeared.12
Key features of Cambrian Series 2 include:
* Life Forms: The period saw the diversification of arthropods, including trilobites, and the appearance of other marine invertebrates like sponges, brachiopods, echinoderms, and mollusks.3
* Environment: Global temperatures were warmer than today, and rising sea levels led to the flooding of continents, creating extensive shallow seas that supported abundant life.12
* Paleogeography: Continents were in different positions than they are today, with major landmasses like Laurentia located near the equator, influencing climate and marine environments.4
The fossil record from this time is crucial for understanding the early evolution of complex life on Earth.5
- Cambrian Period - Boundaries and subdivisions of the Cambrian System
- Cambrian Period
- Cambrian Period - Paleogeography
- Cambrian Period - Fauna
- Cambrian Period - Fossil record of the Precambrian-Cambrian transition
- Cambrian Period - Types and distribution
- Cambrian Period - Correlation of Cambrian strata
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