Geological Sciences Seminar: Seth Finnegan, University of California, Berkeley
- Tuesday, Mar 3, 2020 12:00 PM
- GeoCorner 220 - 450 Serra Mall, Building 320
- More Info:
- Faculty/Staff, Students, Alumni/Friends
- Department of Geological Science
** Please join us for coffee and cookies in the GeoCorner Undergraduate lounge (bldg. 320, rm 114) before the talk, at 11:30am! - Seminar will be in room 220~
What happened during the Late Ordovician Mass Extinction, and Why Hasn't it Happened Again?
During the past two decades our understanding of the drivers of mass extinction events has improved considerably. As other events have come into focus, the Late Ordovician Mass Extinction has remained perplexing, and stands out as unusual among major mass extinctions in being apparently associated with cooling and glaciation. Our understanding of the extinction event is impeded by (1) uncertainties regarding the nature, timing, and magnitude of environmental changes, and (2) the lack of a clear pattern of selective extinction. I will discuss recent and ongoing work that aims to overcome these limitations by integrating insights from geochemistry, statigraphy, and paleobiogeography.
Professor Seth Finnegan, AB Geophysical Sciences University of Chicago 1995, Ph.D UC Riverside Geology 2006, postdoctoral appointments at Stanford University and Caltech, now Associate Professor in the Department of Integrative Biology and Associate Curator at the UC Museum of Paleontology, UC Berkeley. Research in my lab focuses on the processes that have shaped the composition of the marine biota and the development of marine ecosystems from the origin of animals in the late Neoproterozoic to the present day. We integrate data from a variety of sources including field observations, lab work, and literature databases to ask and answer questions about the nature of organism-environment interactions through time.