Lab members and collaborators



New: The lab visited Baltimore to attend the Geological Society of America Annual Meeting!



Students


photo of Zoey Werbin
Zoey Werbin '17 (Fall 2015, Spring 2016)

Zoey is working on a number of topics, including paleoclimatology, comparing modern and past extinctions, and the anatomy of Bothriolepis, a Devonian placoderm fish. The last project is joint with Jason Downs of Delaware Valley College. Zoey is majoring in biology with a minor in environmental studies.



photo of Katrina Midgley and Tuan Nguyen
Katrina Midgley '17 and Tuan Nguyen '18 (Spring 2016)

Tuan (far right) and Katrina (right) are working on methods for estimating the tempo and duration of the Cambrian explosion. Katrina is majoring in computer science with a minor in statistics, and Tuan is majoring in math (with a statistics emphasis) and computer science.



photo of Tushar Kundu
Tushar Kundu '17 (Spring 2015, Spring 2016)

Tushar is studying the phenomenon of "dead clade walking" after mass extinctions. He is majoring in economics and minoring in statistics.





photo of Heather Zhou and Daniel Wang
Daniel Wang '17 and Heather Zhou '16 (Summer 2015)

Heather (left) and Daniel (right) worked on methods for estimating the tempo and duration of the Cambrian explosion. Daniel is majoring in math with a minor in computer science. For more info on Heather, see below. They presented a poster at the Geological Society of America annual meeting (Baltimore, 2015).



photo of Meghana Ranganathan and Brandon Chow
Brandon Chow '17 and Meghana Ranganathan '17 (Fall 2014–Spring 2015)

Meghana (far right) and Brandon (second from right) implemented Markov Chain Monte Carlo (MCMC) and Approximate Bayesian Computation (ABC) algorithms to study the end-Permian mass extinction and its effects on food webs. This project was in collaboration with Peter Roopnarine of the California Academy of Sciences (far left) and Ken Angielczyk of the Field Museum (not shown). Meghana is majoring in math; Brandon is majoring in math (with a statistics emphasis) and computer science. They presented a poster at the Geological Society of America annual meeting (Baltimore, 2015).



photo of Leonie Cohen
Leonie Cohen '16 (Spring 2015)

Leonie worked on the evolution of catarrhine primates, particularly the divergence of Hominoidea and Cercopithecoidea. She is majoring in biological anthropology. Leonie presented a poster at the Geological Society of America annual meeting (Baltimore, 2015) and is a co-author on a paper currently in preparation with Steve and Philip Gingerich.




photo of Heather Zhou
Heather Zhou '16 (Spring 2015)

Heather is developing algorithms for estimating the duration of the Cambrian explosion and for confidence intervals on stratigraphic ranges when recovery potential is not uniform. She is a co-author on a paper currently in preparation on the latter topic. She is majoring in math. Heather is a co-author on a paper currently in press at Paleobiology (scheduled for spring 2016). She presented a poster at the Geological Society of America annual meeting (Baltimore, 2015) and is a co-author on a second GSA abstract.



photo of Richard Liang and Ben Xie
Richard Liang '15 and Ben Xie '16 (Spring 2014)

Ben (right) and Richard (left) worked on parallelizing the algorithms for estimating the number of pulses in a mass extinction. Ben is majoring in computer science with minors in statistics and English literature, and Richard is majoring in computer science and math.






Linda Gai '15 and Chengying Wang '15 (Summer 2013)
photo of Linda Gai and Chengying Wang

Chengying (second from right) and Linda (far right) worked on estimating the tempo of the Cambrian explosion. They presented a poster at the Geological Society of America annual meeting (Denver, 2013) and are also co-authors on two additional abstracts. Chengying majored in mathematics and computer science and is currently working in the insurance industry. Linda is majored in mathematics with a minor in biology and is currently a graduate student in biostatistics at Johns Hopkins. At left is the rest of our research group: Adam Maloof (Princeton), Susannah Porter (UCSB), and a friend (Late Jurassic). (Not in photo: John Moore, UCSB.)



photo of Peter Gao
Peter Gao, Strath Haven High School '13 (Summer 2013)

Peter studied the effectiveness of visualizing complex datasets using Chernoff faces. He is currently an undergradute at the University of Chicago.






Ling Zhong '13 (Summer 2011, Spring 2013)
photo of Ling Zhong

Ling worked on three projects: (1) assessing the population size of the North Atlantic right whale, one of the most endangered large cetacean species, (2) estimating the number of pulses in a mass extinction, and (3) the effect of incomplete preservation in estimating the incidence of drilling predation on bivalves. She presented a poster at the Geological Society of America annual meeting (Minneapolis, 2011) and the Sigma Xi poster session (Swarthmore, 2011). She is a co-author of two GSA abstracts and a paper provisionally accepted for Paleobiology. Ling majored in math and economics and is currently a graduate student in economics at Yale University. At left, she explains her poster to Jason Downs.




photo of Sally Chang Sally Chang '11 (Spring 2011)

Sally did an independent study on extinction selectivity in mass extinctions. She majored in biology and medieval studies and is currently a graduate student in ecology and evolutionary biology at the University of Kansas.







Brendan McVeigh '11 and Aaron Zimmerman '11 (Summer 2010)
photo of Brendan McVeigh and Aaron Zimmerman

Aaron and Brendan worked on confidence intervals for estimating the duration of a mass extinction. They presented a poster at the Geological Society of America annual meeting (Denver, 2010) and the Sigma Xi poster session (Swarthmore, 2010). They are co-authors of a 2012 paper in Paleobiology and a GSA abstract. Brendan majored in math with a minor in physics and is currently a graduate student in statistics at Carnegie Mellon. Aaron majored in math and engineering and is currently a graduate student in statistics at the University of Washington.




Brianna Rego, Stanford MS '10 (as second reader; Primary advisor: Jonathan Payne)
photo of Brianna Rego

Brianna worked on the evolution of body size in foraminifera and the effect of mass extinctions and recoveries on size trends. She is the lead author of a paper in Paleobiology, another paper currently in press at Paleobiology, and a GSA abstract. Brianna earned her PhD in history of science at Stanford University and is now a Research Associate at the Life Sciences Foundation.






Heidi Wong '10 (Summer 2008)
photo of Heidi Wong

Heidi worked on two projects: (1) confidence intervals for estimating the duration of a mass extinction, and (2) visualizing complex datasets using Chernoff faces. For the first topic, she presented a poster at the Geological Society of America annual meeting (Portland, 2009) and is the co-author of a 2012 paper in Paleobiology and two GSA abstracts. For the second topic, preliminary results from our work were presented by Steve at the Harvard Quintessential Contributions celebration, and further work is ongoing. Heidi majored in cognitive science with a minor in statistics and is currently a M. Arch student at the Taubman College of Architecture and Urban Planning of the University of Michigan.




Dasol Park '10 (Summer 2008)
photo of Dasol Park

Dasol worked on confidence intervals for stratigraphic ranges when recovery potential is non-uniform. He presented posters at the Geological Society of America annual meeting (Houston, 2008) and the Sigma Xi poster session (Swarthmore, 2008). He is a co-author of two abstracts and a paper currently in press at Paleobiology (scheduled for 2016). Dasol majored in math and computer science and currently works in investment management.




Libin (Geoffrey) Sun '10 (Summer 2008)
photo of Geoffrey Sun

Geoffrey worked on Markov Chain Monte Carlo algorithms for estimating extinction levels in the end-Permian extinction. He presented posters at the Geological Society of America annual meeting (Houston, 2008) and the Sigma Xi poster session (Swarthmore, 2008). He is a co-author of an abstract and a paper currently in preparation. Geoffrey majored in math and computer science and is currently a graduate student in computer science at Brown University. At left, he explains his poster to Tom Rothfus.




Michael Karcher '07 (Summer 2006, Summer 2007)
photo of Mike Karcher

Mike worked on Markov Chain Monte Carlo algorithms for estimating extinction levels in the end-Permian mass extinction. He presented posters at the Geological Society of America (Philadelphia, 2006), the Joint Statistical Meetings (Salt Lake City, 2007), the Smithsonian-UPenn Geobiology Symposium (Washington, DC, 2007), and the Sigma Xi poster session (Swarthmore, 2007). He is the co-author of two abstracts and a paper currently in preparation. Mike majored in math with a minor in English. He is currently a graduate student in statistics at the University of Washington.




David Chudzicki '07 (Summer 2007)
photo of David Chudzicki

David worked on confidence intervals for stratigraphic ranges when recovery potential is non-uniform. He is a co-author of a paper in Paleobiology and another paper currently in press at Paleobiology (scheduled for 2016). David majored in math with a minor in linguistics. He earned an MS in mathematics from the University of Chicago and currently works as a data scientist in the predictive modeling and analytics industry.





Current and former collaborators


Ken Angielczyk, Field Museum (below)

Richard Bambach, Smithsonian

Steve Brusatte, University of Edinburgh

Andy Bush, Connecticut

Peter Dodson, UPenn

Phil Everson, Swarthmore

Seth Finnegan, UC Berkeley

Jessica Todd Harper, Jessica Todd Harper Photography

Noel Heim, Stanford

Andrew Knoll, Harvard

Matthew Knope, Stanford

Michal Kowalewski, Florida

Graeme Lloyd, Macquarie (Australia)

Charles Marshall, UC Berkeley

Adam Maloof, Princeton

Dan McShea, Duke

John Moore, UC Santa Barbara

Phil Novack-Gottshall, Benedictine U.

Sophia Passy, U of Texas-Arlington

Jon Payne, Stanford (above)

Susannah Porter, UC Santa Barbara

David Roberts, University of Kent

Peter Roopnarine, California Academy of Sciences (left)

Ellen Schaal, Lawrence U

Andrew Solow, Woods Hole

Working group on body size macroevolution and macroecology, National Evolutionary Synthesis Center




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