The Plant Fossil Collections are curated by Kathleen B. Pigg. Our holdings include around 15,000 megafossil specimens as well as coal balls and silicifications, a fossil and extant palynomorph collection, and extant wood and anatomical sections. Strengths of the collection include Late Paleocene, Eocene and Miocene floras of western North America, Gondawana floras of Australia, and Paleozoic and Cretaceous plant fossils of Arizona.