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  Comparison of cranial ontogenetic trajectories among great apes and humans

Mitteroecker, P., Gunz, P., Bernhard, M., Schaefer, K., & Bookstein, F. L. (2004). Comparison of cranial ontogenetic trajectories among great apes and humans. Journal of Human Evolution, 46(6), 679-698. doi:10.1016/j.jhevol.2004.03.006.

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 Urheber:
Mitteroecker, Philipp, Autor
Gunz, Philipp1, Autor                 
Bernhard, Markus, Autor
Schaefer, Katrin, Autor
Bookstein, Fred L., Autor
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1External Organizations, ou_persistent22              

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Schlagwörter: Allometry, Cranial morphology, Geometric morphometrics, Heterochrony, Hominid evolution, Ontogenetic divergence, Size–shape space
 Zusammenfassung: Molecular data suggest that humans are more closely related to chimpanzees than either is to the gorillas, yet one finds the closest similarity in craniofacial morphology to be among the great apes to the exclusion of humans. To clarify how and when these differences arise in ontogeny, we studied ontogenetic trajectories for Homo sapiens, Pan paniscus, Pan troglodytes, Gorilla gorilla and Pongo pygmaeus. A total of 96 traditional three-dimensional landmarks and semilandmarks on the face and cranial base were collected on 268 adult and sub-adult crania for a geometric morphometric analysis. The ontogenetic trajectories are compared by various techniques, including a new method, relative warps in size–shape space. We find that adult Homo sapiens specimens are clearly separated from the great apes in shape space and size–shape space. Around birth, Homo sapiens infants are already markedly different from the great apes, which overlap at this age but diverge among themselves postnatally. The results suggest that the small genetic differences between Homo and Pan affect early human ontogeny to induce the distinct adult human craniofacial morphology. Pure heterochrony does not sufficiently explain the human craniofacial morphology nor the differences among the African apes.

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Sprache(n): eng - English
 Datum: 2004-05-052004-06
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.jhevol.2004.03.006
 Art des Abschluß: -

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Titel: Journal of Human Evolution
  Alternativer Titel : Journal of Human Evolution
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 46 (6) Artikelnummer: - Start- / Endseite: 679 - 698 Identifikator: ISSN: 0047-2484