The fossil mammal collections at the American Museum of Natural History contain nearly 2,000 primary type specimens (genotypes and holotypes), together with around 1,500 casts of primary types from other institutions (plastotypes). Bob Evander has been undertaking a research project to develop and publish a comprehensive catalog of these primary types for a number of years and a preliminary listing of specimens is now available. Specimen lists can be accessed by clicking on the links below.

These data are being provided for the purpose of obtaining comments and amendments from the paleontological community and will be available through the end of 2010. Comments should be sent to [email protected].