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

Now recruiting PhD students for 2015

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


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.

February 19-21, 2015: Bryan Juarez has been granted a full travel award to attend the 2015 Emerging Researchers National Conference in STEM, to be held in Washington DC. He will present his research on diversification trends in the earliest lobe-finned fishes. 

January 12, 2015: High school volunteer Jack Stack's book and research is featured in the Michigan Morning Sun.

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)