MU Researchers Find Rare Fossilized Embryos More Than 500 Million Years Old
Columbia MO (SPX) Apr 11, 2014 - The Cambrian Period is a time when most phyla of marine invertebrates first appeared in the fossil record. Also dubbed the "Cambrian explosion," fossilized records from this time provide glimpses into evolutionary biology when the world's ecosystems rapidly changed and diversified. Most fossils show the organisms' skeletal structure, which may or may not give researchers accurate pictures ... more

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