Earth Sciences: Paleontology: Vertebrates: Mammals: Collections and Databases

Hierarchial Phylogeny of Mammals both living and extinct. JAVA applets. Searchable.

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

An electronic database for the late Quaternary distribution of mammal species in the United States.