A 350-million-year-old marine 
ecosystem in Scotland 
(Painting by Robert Nicholls)

Oxypteriscus, an extinct ray-finned fish

The earliest shell-crushing ray-fin, Fouldenia, 348 million years ago 
(Painting by John Megahan)


Lauren Cole Sallan, PhD
Assistant Professor
Earth and Environmental Science

& Evolution Cluster
University of Pennsylvania
CV  Google Citations Impact Story

Research Summary
We are broadly interested in how global events, environmental change and ecological interactions affect long-term evolution (macroevolution) in early vertebrates (half of vertebrate history) and ray-finned fishes (half of vertebrate diversity).

Research Interests
Macroevolution, Macroecology,
Early Vertebrates, Ichthyology 
Mass Extinction, Phylogenetics
Biomechanics, Evo-Devo

Listen to a Palaeocast interview about our research on early vertebrate macroevolution and paleobiology

April 22, 2015: Incoming undergraduate (Penn '19) Jack Stack has received the Rodney M. Feldman Award, a Paleontological Society Student Research Grant! This will fund his fieldwork on Paleozoic fish faunas in Michigan this summer. Congratulations, Jack!

April 3, 2015: PhD student Kara Ludwig has been awarded a GSA Graduate Student Research Grant to study oxygen isotopes in conodonts over the end-Ordovician extinction! Congratulations, Kara!

March 30, 2015:  MS Student Bryan Juarez has been awarded an NSF Graduate Research Fellowship! Congratulations, Bryan!

Upcoming Talks
May 12-13, 2015: Lauren has been invited to speak at the Swedish Royal Academy of Sciences 275th Anniversary Symposium, "Palaeontological and Molecular Approaches to Early Vertebrate Evolution," in Uppsala, Sweden.

August 3-7: Lauren and Kara will be presenting at the 13th International Symposium on Early and Lower Vertebrates in Melbourne, Australia.

A 310-million-year-old freshwater ecosystem in Illinois
(Painting by John Megahan)

A phylogeny of living ray-finned fishes

A later shell-crushing ray-fin, 
Styracopterus, 340 million years ago
(Painting by John Megahan)