One of the few places in the world in wich such work can be done efficiently

[George Gaylord] Simpson first became seriously interesed in producing a mammal classification when he joined the staff of the American Museum of Natural History in 1927. At that time the preparation of evolutionary classifications was a well-established activity at the museum. Then, as now, there was a need to maintain a continually updated working classification to serve as a systematic framework and means of communication. Because of its location, collections, support staff, and libraries, the American Museum of Natural History (AMNH) has been one of the few places in the world in wich such work can be done efficiently. In 1931 Simpson ^[1] provided a list of mammalian orders and subordinated families. From 1931 until late in 1942, Simpson worked, when time permited, to extend the 1931 classification to what he regarded as the generic (and in some cases subgeneric) level. In addition to the system itself, Simpson's more comprehensive classification ^[2] had a section on the principles and conventions of classification, a long review section dealing with the reasons why various taxonomic decisions had been taken, a bibliography of 960 references, and indices of scientific and vernacular names. (McKenna and Bell 1983: xi).

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McKenna, Malcom C. and Susan K. Bell. 1983. Classification of mammals above the species level. Columbia University Press, 631 pp.

^[1] Simpson, George Gaylor. 1931. A new classification of mammals. Bulletin of the Amercan Museum of Natural History, 59(5): 259-293.

^[2] Simpson, George Gaylor. 1945. The principles of classification and a classification of mammals. Bulletin of the Amercan Museum of Natural History, 85(1): 1-350.

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