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  • Title: Age changes in the pubic symphysis of Macaca mulatta.
    Author: Rawlins RG.
    Journal: Am J Phys Anthropol; 1975 May; 42(3):477-87. PubMed ID: 167589.
    Abstract:
    Age changes in the pubic symphyses of 142 Cayo Santiago rhesus monkeys (known age, sex and maternal genealogy) are described. Symphyseal development is sexually dimorphic. Males generate a ridge and furrow system which is gradually replaced by a solid ankylosis at the mid-sagittal plane. Female development parallels that of the male until puberty. With pregnancy and delivery, relaxation and reaggregation of pelvic ligaments binding the symphysis destroy the symphyseal face. Continued bearing of offspring inhibits mid-sagittal ankylosis. Limited estimates of skeletal age can be made by using symphyseal development as an indicator of senescence.
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