This app is a free resource designed to help individuals identify and better understand fossil species from the Neogene Pennsylvanian Ordovician and Cretaceous of the U.S.A.

It is a companion to the Digital Atlas of Ancient Life website https://www.digitalatlasofancientlife.org and was supported by grants from the National Science Foundation (NSF EF-1206757 EF-1206769 EF-1206750 and DBI-1602067 DBI-1645520) to principal investigators Dr. Bruce S. Lieberman (University of Kansas) Dr. Alycia Stigall (Ohio University) and Dr. Jonathan Hendricks (Paleontological Research Institution). This project is related to a broader natural history specimen digitization effort supported by the National Resource for Advancing the Digitization of Biodiversity Collections (ADBC) called Integrated Digitized Biocollections or iDigBio.

For additional information about this work please see the open-access paper by Hendricks Stigall and Lieberman (2015) in Palaeontologia Electronica.