Cambrian Explosion - More Like Precambrian Explosion and Cambrian Skeletonization

Explore the evolving understanding of the Cambrian Explosion in this 29-minute video lecture. Delve into the complexities of early animal evolution, examining the transition from Ediacaran to Cambrian fauna. Learn about the existence of complex animals predating the Cambrian period, the mass extinction of Ediacaran fauna, and the factors contributing to increased diversity and skeletonization in the Early Cambrian. Investigate the role of increased oxygen concentrations, predation, and mineral flux in shaping animal evolution. Gain insights into the challenges of interpreting the patchy fossil record and the mysterious extinctions of major reef-building organisms during the Cambrian period. Understand the reasons behind low biodiversity for the first 4 billion years of Earth's history and the subsequent increase in diversity after 600 million years ago.

Was it really an Explosion?
Since Naming the Cambrian Explosion…
Ediacaran Fauna
Major Animal Groups Predate Cambrian
Mass Extinction of Ediacaran Fauna
What Caused Ediacaran Extinction?
Patchy Fossil Record Makes it Difficult…
Ediacaran vs Cambrian Fauna
New Cambrian Life
Huge Cambrian Predators
Mysterious Cambrian Extinctions
Major Cause of Cambrian Explosion
Why Low Diversity for First 4 ~Billion Yrs on Earth?
Why High Diversity After ~600 Ma?
What Caused O2 increase ~600 Ma?
Summary of Ediacaran to Cambrian Events
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