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phyletic gradualism
References
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phyletic gradualism

biology
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The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • illustration of Homo erectus
    Homo erectus
    / Theories of gradual change

    …the evolutionary sequence are called chronospecies. The boundaries between chronospecies are almost impossible to determine by means of any objective anatomic or functional criteria; thus, all that is left is the guesswork of drawing a boundary at a moment in time. Such a chronological boundary may have to be drawn…

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    …the evolutionary sequence are called chronospecies. The boundaries between chronospecies are almost impossible to determine by means of any objective anatomic or functional criteria; thus, all that is left is the guesswork of drawing a boundary at a moment in time. Such a chronological boundary may have to be drawn…

    Read More