β Scribed by Winkler, L. A.; Schwartz, J. H.; Swindler, D. R.
No coin nor oath required. For personal study only.
This study examines dental formation and alveolar emergence in a large cross-sectional sample composed primarily of wild-reared orangutans (N = 89) in order to provide information on the development of the permanent dentition in this hominoid and to address questions of variation in individual tooth formation, between teeth and between individuals. All specimens have been radiographed in lateral aspect and stages of crown and root formation recorded for all teeth. The ranges of crown and root formation
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The purpose of the present study was to evaluate hand size and maturity in fetuses with trisomy 21 (Down syndrome). Twentyfive fetuses, crown-rump length (CRL) 55-222 mm, foot length (FL) 8-42 mm, were included in the study. After whole-body radiography (Hewlett Packard Faxitron), special radiograph
Data are presented documenting the timing of tooth calcification for the left mandibular dentition (I,-M3) based on a cross-sectional series of intraoral dental X-rays from a sample of 118 captive chimpanzees. Mean, median, and midpoint ages of attainment; standard deviations (SD); interquartile ran
Tooth calcification is an important developmental marker for use in constructing models for early hominid life history, particularly for its application to the fossil record. As chimpanzees are commonly utilized in interspecific comparisons in such research, this study aims to improve available base