The premaxillary-frontal articulation has been reported as a common feature in Old World monkeys, while the absence of this contact has been described in bone New World monkeys. In the present study, it was observed in only 2 of 551 Old World monkey skulls and was never found in the New World specimens. The nasomaxillary bone described by Ashley-Montagu in 1935 was absent in all monkeys studied. The premaxillary-frontal articulation is shown to have limited taxonomic value in separating Old and New World monkeys.

Keywords:
Premaxillary bone, Nasomaxillary, Cranial bone topography, Taxonomy
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© 1973 S. Karger AG, Basel
1973
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