Late Ordovician extinction

This presentation has since taken place, you can view the film recording here.

William Schmachtenberg

Abstract:

There have been at least 5 mass extinctions in the geologic past and some say there was a sixth. Multiple theories from volcanism, plate tectonics, biotic interactions, and changes to ocean chemistry have been proposed for these extinction events. Local field studies in Virginia has shed light on the Late Ordovician extinction when 86% of animals in the ocean perished. These data will be given in the presentation. Studies like this one are important in answering the question will there be another mass extinction in the future?

by Dr. William F. Schmachtenberg (Dae Miami SL)

Previous work in the Film Collection

Related Hypothesis article “The Cracks in Time”

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