Produce interactive maps of geographic occurrences of mammal taxa through parts of the Miocene, with an associated database of geographic and temporal information, all served on the internet through the University of California Museum of Paleontology web site Build interfaces for using standard museum databases in GIS analyses, which are more suited to natural history collections in view of the mapping and spatial analytical capabilities of GIS Join forces with other database accumulation efforts The analyses and database are designed around a Geographic Information System and therefore utilize the full analytical capabilities of GIS. The project focuses on building details for a subset of the information included in existing databases (such as ETE and NAMPFD), thus taking the data, and the questions it can be used to answer, to the next-finer scale of resolution.