Abstract
The age of non‐domesticated primates has always been a question to the scientific investigator. This question was magnified in the early 1960's when primate research hit a new peak. Age development standards became necessary to conduct many projects demanding developmental information. This project utilized known aged Papio cynocephalus baboons. Skull, muzzle, long bone and tooth development measurements were taken on a linear growth program for five years. These data, when programed for the computer, gave a reliable regression curve age predictability of one month up to 40 months and a three month age predictability up to 72 months for P. cynocephalus. Data taken from known‐aged animals not in the survey proved the reliability of the project.

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