Auricular surface aging: worse than expected? A test of the revised method on a documented historic skeletal assemblage

Am J Phys Anthropol. 2006 Aug;130(4):508-13. doi: 10.1002/ajpa.20382.

Abstract

This study presents results and recommendations arising from a blind test of the revised age estimation method for the auricular surface as proposed by Buckberry and Chamberlain ([2002] Am. J. Phys. Anthropol. 119:321-329). Auricular surfaces of 167 individuals from St. Bride's, London, a documented skeletal assemblage spanning the late 17th to early 19th century, were analyzed for the following traits: transverse organization, surface texture appearance, macroporosity, microporosity, and morphological changes to the apex. Composite scores of trait expressions were found to generally correlate with age and to show a positive association with known chronological age (P < 0.01). However, when composite scores were combined to define auricular surface phases, which ultimately assign age estimations, only three distinct developmental stages, compared with seven suggested by Buckberry and Chamberlain ([2002] Am. J. Phys. Anthropol. 119:321-329), could be identified and statistically supported, all showing a considerable degree of individual variation in age. The most well-defined stage in the St. Bride's assemblage was the new stage III, where the majority of individuals were older than 60 years, whereas middle-aged adults displayed a large variation in composite scores. These results provide little hope for a promising application of age-at-death estimation of auricular surface morphology traits with higher resolution, but rather suggest indications of broad stages of life.

Publication types

  • Evaluation Study

MeSH terms

  • Adolescent
  • Adult
  • Age Determination by Skeleton / methods*
  • Aged
  • Aged, 80 and over
  • Aging / pathology
  • Aging / physiology*
  • Anthropology, Physical / methods*
  • Female
  • Humans
  • Ilium / pathology
  • Ilium / physiology*
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Reproducibility of Results
  • Single-Blind Method