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  1. Addition to knowledge of Groeberia (Mammalia, Marsupialia) from the mid-Cenozoic of Argentina
    By: Simpson, G G
    Type: Article
    In: Breviora
    Volume: 362
    Date: 1970
    Page Range: 1--17
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  2. Additions to knowledge of the Argyrolagidae (Mammalia, Marsupialia) from the late Cenozoic of Argentina
    By: Simpson, G G
    Type: Article
    In: Breviora
    Volume: 361
    Date: 1970
    Page Range: 1--9
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  3. The Ameghinos' localities for early Cenozoic mammals in Patagonia
    By: Simpson, G G
    Type: Article
    In: Bulletin of The Museum of Comparative Zoology
    Volume: 136
    Date: 1967
    Page Range: 63--76
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  4. The Argyrolagidae, extinct South American marsupials
    By: Simpson, G G
    Type: Article
    In: Bulletin of The Museum of Comparative Zoology
    Volume: 139
    Date: 1970
    Page Range: 1--86
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  5. The mammalian fauna of the Divisadera Largo formation, Mendoza, Argentina, by George Gaylord Simpson, José Luis Minoprio, and Bryan Patterson
    By: Simpson, G G
    Type: Article
    In: Bulletin of The Museum of Comparative Zoology
    Volume: 127
    Date: 1962
    Page Range: 237--293
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  6. Mammals from the early Cenozoic of Chubut, Argentina
    By: Simpson, G G
    Type: Article
    In: Breviora
    Volume: 360
    Date: 1970
    Page Range: 1--13
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  7. The Tertiary lorisiform primates of Africa
    By: Simpson, G G
    Type: Article
    In: Bulletin of The Museum of Comparative Zoology
    Volume: 136
    Date: 1967
    Page Range: 39--61
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  8. Tertiary penguins from the Duinefontein site, Cape Province, South Africa
    By: Simpson, G G
    Type: Article
    In: Annals of The South African Museum
    Volume: 79
    Date: 1979
    Page Range: 1--7
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