Faunmap - Electronic database for the late Quaternary distribution of mammal species in the United States. Illinois State Museum. - http://www.museum.state.il.us/research/faunmap/
Dinobase - Dinosaur database with comprehensive taxonomic listing, phylogentic information and impressive pictures. - http://palaeo.gly.bris.ac.uk/dinobase/dinopage.html
North American Mammalian Paleofaunal Database - Very comprehensive database on all fossil North American mammal localities and faunas. Link to systematics database with systematic, phylogenetic and body mass data of mammals. - http://www.nceas.ucsb.edu/~alroy/nampfd.html