Collections and Databases
Links
North American Fossil Mammal Systematics Database
http://www.nceas.ucsb.edu/~alroy/nafmsd.html
Consists of phylogenies, taxonomic histories, age-ranges, and body mass estimates for genera and species of Cretaceous and Cenozoic North American fossil mammals. By John Alroy
Faunmap
http://www.museum.state.il.us/research/faunmap/
An electronic database for the late Quaternary distribution of mammal species in the United States.