2024-03-28T19:50:41Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1471482017-12-18T14:25:38Zcom_10261_77com_10261_8col_10261_330
DIGITAL.CSIC
author
Martínez-Maza, Cayetana
author
Freidline, Sarah E.
author
Strauss, Andre
author
Nieto-Díaz, Manuel
2017-03-22T12:46:10Z
2017-03-22T12:46:10Z
2016-05
Evolutionary Biology 43(1): 60-80 (2016)
http://hdl.handle.net/10261/147148
10.1007/s11692-015-9350-7
Adult craniofacial morphology results from complex processes that involve growth by bone modelling and interactions of skeletal components to keep a functional and structural balance. Previous analyses of growth dynamics in humans revealed critical changes during late ontogeny explaining particular morphological features in our species. Data on bone modelling patterns from other primate species could help us to determine whether postnatal changes in the growth dynamics of the craniofacial complex are human specific or are shared with other primates. However, characterizations of bone modelling patterns through ontogeny in non-human hominids are scarce and restricted to isolated data on facial and mandibular regions. In the present study, we analyse the bone modelling patterns in an ontogenetic series of Pan and Gorilla to infer the growth dynamics of their craniofacial complex during postnatal development. Our results show that both Pan troglodytes and Gorilla gorilla are characterized by species-specific bone modelling patterns indicative of a mainly forward growth direction during postnatal development. Both species show minor but consistent ontogenetic changes in the distribution of bone modelling fields in specific regions of the face and mandible, in contrast to other regions which show more constant bone modelling patterns. In addition, we carry out a preliminary integrative study merging histological and geometric morphometric data. Both approaches yield highly complementary data, each analysis providing details on specific growth dynamics unavailable to the other. Moreover, geometric morphometric data show that ontogenetic variation in the modelling pattern of the mandibular ramus may be linked to sexual dimorphism.
eng
closedAccess
Geometric morphometrics
Bone growth modelling
Primates
Surface histology
Morphology
Cranial ontogeny
Bone growth dynamics of the facial skeleton and mandible in Gorilla gorilla and Pan troglodytes
artículo
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URL
https://digital.csic.es/bitstream/10261/147148/1/accesoRestringido.pdf
File
MD5
42637ae8545636bc41605c1740a9a84e
15753
application/pdf
accesoRestringido.pdf