Abstract
The human ilium is significantly shorter and broader than those of all other primates. In addition, it exhibits an anterior inferior iliac spine (AIIS) that emerges via a secondary center of ossification, which is unique to hominids (i.e., all taxa related to the human clade following their phyletic separation from the African apes). Here, we track the ontogeny of human and other primate ossa coxae. The human pattern is unique, from anlage to adulthood, and fusion of its AIIS is the capstone event in a repositioning of the anterior gluteals that maximizes control of pelvic drop during upright walking. It is therefore a hominid synapomorphy that can be used to assess the presence and age of bipedal locomotion in extinct taxa.
Publisher
Proceedings of the National Academy of Sciences
Reference51 articles.
1. The second adolescent (female) ilium of Australopithecus prometheus;Dart;J. Palaeontol. Soc. India,1957
2. T. White , “Ladders, bushes, punctuations, and clades: Hominid paleobiology in the late Twentieth Century” in The Paleobiological Revolution: Essays on the Growth of Modern Paleontology, D. Sepkoski , M. Ruse , Eds. (University of Chicago Press, Chicago, 2009), pp. 122–148.
3. C. K. Brain , E. S. Vrba , J. T. Robinson , A New Hominid Innominate Bone from Swartkrans (Transvaal Museum, 1974).
4. Comparing the human and chimpanzee genomes: Searching for needles in a haystack
5. Human-specific loss of regulatory DNA and the evolution of human-specific traits
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