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Investigating Connections between Lateral Enamel Formation and Life History in New World Monkeys

Clark, Allison N
http://rave.ohiolink.edu/etdc/view?acc_num=osu1405351998

Abstract Details

2014, Master of Arts, Ohio State University, Anthropology.
The field of anthropology has seen a continuous interest in the human life history evolution. Since the modern human life history pattern is unique when compared to the rest of the primates, the question of when and why the modern human life history arose has become a frequent topic of research. The relationship between dental development and life history profiles within extant and fossil primates has not been systematically tested, especially in the anterior dentition. In order to explore this relationship, this study tests the hypotheses that there is a relationship between life history and estimated lateral enamel formation time as well as percent of perikymata in the cervical half of the crown. This study examined these relationships in incisor replicas of twelve extant species of platyrrhines. The measures of life history and related variables include: encephalization quotient, age at weaning, age at reproductive maturation, and average lifespan in addition to brain size and body size. Platyrrhines were chosen for their wide life history variation and their use in previous studies examining dental development and life history. Results show that there are relationships of differing strengths between all variables for each incisor type. Estimated lateral enamel formation time is strongly related to brain size, body size, age at weaning and age at reproductive maturation. The percent of perikymata in the cervical region of the crown is significantly related to brain size, age at reproductive maturation, and weaning age, although these relationships are much weaker and are not found in all tooth types. These results suggest that the relationship between dental development, specifically lateral enamel crown formation time, and life history is robust and should be explored further.
Debbie Guatelli-Steinberg (Advisor)
111 p.
Physical Anthropology
Life History, Primates, Dental Growth

Recommended Citations

Citations

  • Clark, A. N. (2014). Investigating Connections between Lateral Enamel Formation and Life History in New World Monkeys [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405351998

    APA Style (7th edition)

  • Clark, Allison. Investigating Connections between Lateral Enamel Formation and Life History in New World Monkeys . 2014. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1405351998.

    MLA Style (8th edition)

  • Clark, Allison. "Investigating Connections between Lateral Enamel Formation and Life History in New World Monkeys ." Master's thesis, Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405351998

    Chicago Manual of Style (17th edition)

osu1405351998
439
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This open access ETD is published by The Ohio State University and OhioLINK.