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Several sites in the Orce Basin have revealed evidence of the presence of hominids in the Early Pleistocene. These remains
are dated to over 1.0 million years, while they may be as old as 1.6 million years.
The skeletal remains from Venta Micena in the Orce Basin show a molecular “fossil protein” pattern which aligns them with
hominids, but not with equids. This is supported by the anatomical evidence of the two humeral shafts from theEstrato Blanco in the Venta Micena deposits. The biparieto-occipital partial calvaria shows some unusual features if VM-0 is a hominid specimen.
the presence of a prominent crest on the internal surface of the occipital fragment adjacent to the point lambda is decidedly
unusual for a modern human calvaria. Moreover, theimpressions gyrorum, in the region where the superior parietal lobule of the cerebral hemisphere abutted against the calvaria, point to a bipartite
superior parietal lobule with anterior and posterior moieties which, on the endocast, are clearly separated by a depression
that represents a sulcus. These morphological traits are rather puzzling if VM-0 is a hominid, and at first they led me to
hesitate over the anatomical identification of VM-0. However, the studies of Campillo (1989) and of Campillo and Barcelo (1986)
suggest that the features of the fragment VM-0 are compatible with those of a hominid. Because I believe that we do not possess
sufficient information on the variability of the endocranial and ectocranial manifestations of the sagittal suture and of
its variance with age of the individual, in different hominid species and different equid species, I have not adduced this
pattern as evidence in support or rebuttal of the hominid status of VM-0. 相似文献
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Phillip V. Tobias FRS 《Human Evolution》2003,18(1-2):9-63
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