Not much to add here, Dr. Garcia-Bellido Senior Researcher of Palaeontology at the South Australian Museum and Associate Professor at the School of Biological Sciences at the University of Adelaide in Australian does a very nice information filled review of what we know regarding the transition from Ediacara Biota to the Cambrian, which set the stage for the further evolutionary revolutions to follow in short order. Below the fold I post screen shots of key slides to entice and highlight key points. (If you're wondering why I'm posting these videos see this)
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Animal Dawn - Research Tuesday - Garcia-Bellido Presentation
University of Adelaide - Dr. Diego Garcia-Bellido - Animal Dawn - 2016
