A fourth hominin skull from Dmanisi, Georgia

Autor: Reid Ferring, G. Philip Rightmire, Abesalom Vekua, Marcia S. Ponce de León, Gocha Kiladze, Alexander Mouskhelishvili, David Lordkipanidze, Christoph P. E. Zollikofer, Martha Tappen, Medea Nioradze, Jordi Agustí
Rok vydání: 2006
Předmět:
Zdroj: The Anatomical Record Part A: Discoveries in Molecular, Cellular, and Evolutionary Biology. :1146-1157
ISSN: 1552-4892
1552-4884
DOI: 10.1002/ar.a.20379
Popis: Newly discovered Homo remains, stone artifacts, and animal fossils from Dmanisi, Republic of Georgia, provide a basis for better understanding patterns of hominin evolution and behavior in Eurasia ca. 1.77 million years ago. Here we describe a fourth skull that is nearly complete, lacking all but one of its teeth at the time of death. Both the maxillae and the mandible exhibit extensive bone loss due to resorption. This individual is similar to others from the site but supplies information about variation in brain size and craniofacial anatomy within the Dmanisi paleodeme. Although this assemblage presents numerous primitive characters, the Dmanisi skulls are best accommodated within the species H. erectus. On anatomical grounds, it is argued that the relatively small-brained and lightly built Dmanisi hominins may be ancestral to African and Far Eastern branches of H. erectus showing more derived morphology.
Databáze: OpenAIRE