Basicranial flexion, relative brain size, and facial kyphosis in nonhuman primates.
Basicranial flexion, relative brain size, and facial kyphosis in nonhuman primates.
复制标题
非人类灵长类动物的基本颅骨屈曲、相对大脑大小和面部后凸。
DOI:
10.1002/ajpa.1330910306
复制
发表时间:
1993
影响因子:
2.8
通讯作者:
Ravosa,MJ
中科院分区:
文献类型:
--
作者:
Ross,CF;Ravosa,MJ
Numerous hypotheses explaining interspecific differences in the degree of basicranial flexion have been presented. Several authors have argued that an increase in relative brain size results in a spatial packing problem that is resolved by flexing the basicranium. Others attribute differences in the degree of basicranial flexion to different postural behaviors, suggesting that more orthograde animals require a ventrally flexed pre‐sella basicranium in order to maintain the eyes in a correct forward‐facing orientation. Less specific claims are made for a relationship between the degree of basicranial flexion and facial orientation. In order to evaluate these hypotheses, the degree of basicranial flexion (cranial base angle), palate orientation, and orbital axis orientation were measured from lateral radiographs of 68 primate species and combined with linear and volumetric measures as well as data on the size of the neocortex and telencephalon. Bivariate correlation and partial correlation analyses at several taxonomic levels revealed that, within haplorhines, the cranial base angle decreases with increasing neurocranial volume relative to basicranial length and is positively correlated with angles of facial kyphosis and orbital axis orientation. Strepsirhines show no significant correlations between the cranial base angle and any of the variables examined. It is argued that prior orbital approximation in the ancestral haplorhine integrated the medial orbital walls and pre‐sella basicranium into a single structural network such that changes in the orientation of one necessarily affect the other. Gould's (“Ontogeny and Phylogeny.” Cambridge: Belknap Press, 1977) hypothesis, that the highly flexed basicranium ofHomomay be due to a combination of a large brain and a relatively short basicranium, is corroborated. © 1993 Wiley‐Liss, Inc.
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DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
F. Szalay;A. Rosenberger;M. Dagosto
通讯作者:
M. Dagosto
影响因子:
2.8
作者:
S. Luboga;B. Wood
通讯作者:
B. Wood
影响因子:
2.8
作者:
A. H. Schultz
通讯作者:
A. H. Schultz
影响因子:
64.8
作者:
G. E. Smith
通讯作者:
G. E. Smith
DOI:
10.1159/000144471
发表时间:
1975
期刊:
Acta anatomica
影响因子:
--
作者:
L. Adams;W. J. Moore
通讯作者:
W. J. Moore