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The cheetah: native american.

D B Adams

    Science (New York, N.Y.)
    |September 14, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Fossil North American big cats, previously thought to be pumas, are actually close relatives of the cheetah. A new subgenus, Miracinonyx, is proposed for these extinct cheetah relatives.

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    Area of Science:

    • Paleontology
    • Vertebrate Zoology
    • Evolutionary Biology

    Background:

    • Large felids from the Late Cenozoic of North America have been historically classified as pumas (mountain lions).
    • The evolutionary relationships between extinct and extant large felids remain an area of active research.

    Purpose of the Study:

    • To re-evaluate the taxonomic and evolutionary placement of two North American fossil felid species.
    • To investigate the relationship between these fossil species and the modern cheetah (Acinonyx jubatus).

    Main Methods:

    • Comparative morphological analysis of fossil specimens.
    • Phylogenetic analysis incorporating fossil and extant felid taxa.

    Main Results:

    • Two North American fossil felids are identified as closely related to the African and Eurasian cheetah (Acinonyx).

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  • A new subgenus, Miracinonyx, is proposed for these extinct cheetah relatives.
  • Evidence suggests a potential common ancestor for cheetahs and pumas in Miocene North America.

    • Conclusions:

    • The evolutionary history of large felids is more complex than previously understood.
    • Extinct North American felids represent a significant lineage within the cheetah evolutionary group.
    • This finding reshapes our understanding of felid biogeography and diversification.