Inter- and intra-specific variation in the ontogeny of the hominoid facial skeleton: testing assumptions on ontogenetic variability

Strand Vidarsdóttir, U.; Cobb, S.

Abstract

In this paper we use geometric morphometric techniques to test two assumptions that are commonly made about variations in facial ontogeny: closely related species, or members of the same species, will share a common early post-natal ontogeny; and closely related species, or members of the same species, will share a common ontogenetic scaling trajectory. To test these assumptions we use four species of hominines: Homo sapiens, Gorilla gorilla, Pan troglodytes and Pan paniscus. The first assumption is falsified, both inter- and intra-specifically, using discriminant analysis with crossvalidation of subadults prior to the onset of the eruption of the permanent dentition. The second assumption only holds true for inter-specific comparisons of ontogenetic scaling trajectories, while assumptions of variation in intra-specific scaling trajectories are falsified with these data.

Citation

Strand Vidarsdóttir, U., & Cobb, S. (2004). Inter- and intra-specific variation in the ontogeny of the hominoid facial skeleton: testing assumptions on ontogenetic variability. Annals of Anatomy, 186(5-6), 423-428. https://doi.org/10.1016/s0940-9602%2804%2980076-1

• Journal Article Type: Article
• Publication Date: Dec 1, 2004
• Deposit Date: May 23, 2007
• Journal: Annals of Anatomy
• Print ISSN: 0940-9602
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 186
• Issue: 5-6
• Pages: 423-428
• DOI: https://doi.org/10.1016/s0940-9602%2804%2980076-1
• Keywords: Ontogeny, Gorilla, Pan, Homo, Geometric morphometrics, Allometry, Cranio-facial.
• Public URL: https://durham-repository.worktribe.com/output/1630876