A 350-million-year-old marine
ecosystem in Scotland
Vertebrates before and after the end-Devonian extinction (from Sallan and Galimberti, Science, 2015) 348 million year old fish Aetheretmon, showing the ancestral double tail alongside a modern pufferfish with (lower) caudal fin alone.
|Lauren Sallan, PhD|
Earth and Environmental Science
2017 TED Fellow
CV Google Citations
We use 'Big Data' approaches, evolutionary trees and detailed study of fossils to determine how global events, environmental change and ecological interactions shaped long-term change (macroevolution) and established modern biodiversity.
Deep-time databases for early vertebrates (half of vertebrate history), ray-finned fishes (half of vertebrate diversity), marine ecosystems and mass extinctions provide our test cases.
Early Vertebrates, Ichthyology
Mass Extinction, Phylogenetics
Listen to a Palaeocast interview about our research on early vertebrate macroevolution and paleobiology
March 17, 2017: Erynn Johnson has been awarded an NSF Graduate Research Fellowship for her awesome work on the role of crushing predation in macroevolution. Congratulations, Erynn!
A phylogeny of living ray-finned fishes
A 310-million-year-old freshwater ecosystem in Illinois
(From Sallan, Biological Reviews, 2014)
A later shell-crushing ray-fin,
Styracopterus, 340 million years ago