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Multivariate dental allometry in primates.

R S Corruccini, A M Henderson

    American Journal of Physical Anthropology
    |February 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Large primate teeth size is linked to skull size, not necessarily unique traits. Diet variation significantly influences this dental allometry, suggesting growth trends are key.

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    Area of Science:

    • Primate Paleontology
    • Comparative Anatomy
    • Evolutionary Biology

    Background:

    • Debate exists on whether large primate teeth result from growth patterns or inherent differences.
    • Understanding dental scaling relative to body size is crucial for primate evolutionary studies.

    Purpose of the Study:

    • To investigate dental scaling in primates relative to cranial and inferred body size.
    • To determine if observed dental size variations are due to growth trends or intrinsic factors.

    Main Methods:

    • A cross-primate survey was conducted using principal component analysis.
    • Multivariate growth relationships between dental and cranial size data were measured.

    Main Results:

    • Cheek teeth exhibit strong positive allometry in specific primate groups, notably cercopithecoids.

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  • Controlling for dietary variation reduces this allometry to a near-linear relationship.

    • Conclusions:

    • Primate dental allometry is significantly influenced by dietary factors.
    • Growth trends, modulated by diet, appear to be a primary driver of dental size variation in primates, rather than intrinsic differences alone.