Palaeobiogeography of mesozoic mammals - revisited

Thomas Hewitt Rich, Patricia Vickers Rich

    Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

    7 Citations (Scopus)


    The fossil record of mammals in the Mesozoic is decidedly meagre in comparison to that of the Cainozoic, but some useful generalisations can be drawn about the biogeographic history of this group during the Mesozoic. Compared with the Jurassic, when cosmopolitanism was frequent among the mammalian families, regionalism became more pronounced in the Cretaceous, particularly the Late Cretaceous, probably reflecting the continental aggregation that produced Pangea and, subsequently Gondwana as the Mesozoic progressed. The conventional hypothesis that therians arose on the northern continents and dispersed to the southern continents reflects the poor Mesozoic mammalian record. Recent discoveries in Africa, South America and Australia suggest that caution is warranted before accepting the conventional hypothesis.

    Original languageEnglish
    Title of host publicationEarth and Life: Global Biodiversity, Extinction Intervals and Biogeographic Perturbations Through Time
    EditorsJohn A Talent
    Place of PublicationLondon UK
    Number of pages22
    ISBN (Electronic)9789048134281
    ISBN (Print)9789048134274
    Publication statusPublished - 1 Jan 2012


    • Dispersals
    • Eutherians
    • Interchanges
    • Mammalia
    • Marsupials
    • Mesozoic
    • Metatherians
    • Monotremes
    • Origins
    • Palaeobiogeography
    • Placentals
    • Regionalism

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