Metatarsal fusion pattern and developmental morphology of the Olduvai Hominid 8 foot: Evidence of adolescence
| Autor: | Hugo F.V. Cardoso, Megan J. Francis, Biren A. Patel, Randall L. Susman |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male Adolescent Pan troglodytes Hominidae Olduvai Gorge Theria medicine Animals Humans Skeletal material Developmental morphology Ecology Evolution Behavior and Systematics Metatarsal Bones Foot (prosody) biology Fossils Age Factors Anatomy X-Ray Microtomography biology.organism_classification medicine.anatomical_structure Homo habilis Epiphysis Anthropology Female Epiphyses |
| Zdroj: | Journal of human evolution. 60(1) |
| ISSN: | 1095-8606 |
| Popis: | The morphology of the Olduvai Hominid (OH) 8 foot and the sequence of metatarsal epiphyseal fusion in modern humans and chimpanzees support the hypothesis that OH 8 belonged to an individual of approximately the same relative age as the OH 7 subadult, the holotype of Homo habilis. Modern humans and chimpanzees exhibit a variety of metatarsal epiphyseal fusion patterns, including one identical to that observed in OH 8 in which metatarsal 1 fuses before metatarsals 2-5. More than the metatarsal fusion sequence, however, the principal evidence of the youthful age of OH 8 lies in the morphology of metatarsals 1, 2, and 3. Because both OH 8 and OH 7 come from the same stratum at the FLK NN type site, the most parsimonious explanation of the OH 8 and OH 7 data is that this material belonged to the same individual, as originally proposed by Louis Leakey. The proposition that OH 8 belonged to an adult is unsupported by morphology, including radiographic evidence, and the fusion sequences in human and chimpanzee skeletal material reported here and in the literature. |
| Databáze: | OpenAIRE |
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