Alycia Stigall

Alycia Stigall

Athens, OH



Alycia Stigall


Athens, OH

Fossil Specialty (if any)

Ordovician brachiopods and their friends, Conchostracans

Favorite Collecting Site(s) or Region(s)

The Ordovician of the world! But especially the Cincinnati region.  I grew up in Cincinnati, and no other fossils have ever been able to be usurp their central position in my heart.  I have collected specimens on all seven continents for projects spanning marine paleobiology of invertebrates (mostly brachiopods) through lacustrine crustaceans of the Mesozoic through Cenozoic deposits.


I am a faculty member in the Geological Sciences department at Ohio University in Athens, Ohio.  My research employs paleogeographic, paleoecology, and phylogenetic methods to examine the response of species to environmental change.  I am particularly interested in how species alter their ecological niches and geographic ranges and well as better understanding the process of speciation.  I teach courses on Earth History, Paleontology, Paleoecology, Paleobiogeography, and Carbonate Depositional Systems.

Affiliations and Relevant Organizations

I am Professor of Geological Sciences at Ohio University. I also co-lead the International Geoscience Programme (IGCP) 653 “the onset of the Great Ordovician Biodiversificaiton Event” (

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