Comment on “A Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo”

@article{Schwartz2014CommentO,
  title={Comment on “A Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo”},
  author={Jeffrey H Schwartz and Ian Tattersall and Zhang Chi},
  journal={Science},
  year={2014},
  volume={344},
  pages={360 - 360}
}
Lordkipanidze et al. (Research Article, 18 October 2013, p. 326) conclude, from gross morphological comparisons and geometric-morphometric analysis of general shape, that the five hominid crania from Dmanisi in Georgia represent a single regional variant of Homo erectus. However, dental, mandibular, and cranial morphologies all suggest taxic diversity and, in particular, validate the previously named H. georgicus. 
Response to Comment on “A Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo”
Schwartz et al. hold that variation among the Dmanisi skulls reflects taxic diversity. The morphological observations to support their hypothesis, however, are partly incorrect, and not calibrated
What kind of hominin first left Africa?
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A pre‐Homo erectus hominin must be considered the most likely maker of stone tools from Jordan and China, and sheds new light on at least two disputed subjects in paleoanthropology, namely the remarkable variation among the five Dmanisi skulls, and the ancestry of Homo floresiensis.
Dmanisi: A Taxonomic Revolution
Over the past two decades, five different skulls have been found in the Dmanisi site located in the Republic of Georgia. These skulls are all very different in cranial features, but they are also
Variation among the Dmanisi hominins: Multiple taxa or one species?
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Expanded Distance-based Phylogenetic Analyses of Fossil Homo Skull Shape Evolution
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Evidence is found that the African Iwo Eleru skull, only about 12,000 years old, indeed represents a new species of near human, and the enigmatic Saldahna skull emerges as a probable first representative of that lineage, which exclusive of Neanderthals that, eventually lead to modern humans.
Developmental simulation of the adult cranial morphology of Australopithecus sediba
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Comparisons of Australopithecus sediba crania with other early hominin taxa indicate that subsequent cranial development primarily reflects development of secondary sexual characteristics and would not likely be substantial enough to alter suggested morphological affinities of A. sediba.
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References

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A Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo
TLDR
The Dmanisi sample, which now comprises five crania, provides direct evidence for wide morphological variation within and among early Homo paleodemes, implying the existence of a single evolving lineage of early Homo, with phylogeographic continuity across continents.
A New Skull of Early Homo from Dmanisi, Georgia
TLDR
The Dmanisi specimens are the most primitive and small-brained fossils to be grouped with this species or any taxon linked unequivocally with genusHomo and also the ones most similar to the presumedhabilis-like stem.
Postcranial evidence from early Homo from Dmanisi, Georgia.
TLDR
Newly excavated postcranial material from Dmanisi comprising a partial skeleton of an adolescent individual, associated with skull D2700/D2735, and the remains from three adult individuals shows that the postc Cranial anatomy of the D manisi hominins has a surprising mosaic of primitive and derived features.
Palaeoanthropology: Small-brained and big-mouthed
A complete hominin cranium found at the archaeological site of Dmanisi shows remarkably primitive morphology, prompting its discoverers to propose that early forms of the genus Homo evolved as a
Terminology and craniodental morphology of genus Homo (Europe)
Preface. PART 1: TERMINOLOGY AND CRANIODENTAL MORPHOLOGY OF GENUS HOMO. Descrptive Protocol. Descriptive Format. Abbreviations Craniodental Morphology and Terminology. Maps. PART 2: SITE--BY--SITE
The human chin revisited: what is it and who has it?
TLDR
The essential features of symphyseal morphology in H. sapiens are pointed out, which are present and well-defined in the fetus at least as early as the fifth gestational month and serve to emphasize the importance of studying this region in juveniles whenever possible.
Craniodental morphology of genus Homo (Africa and Asia)
Preface to Volumes One and Two. PART 1. INTRODUCTION. Descriptive Protocol. Descriptive Format. Anatomical Terminology Figures. Abbreviations. Maps. Layout of Entries. PART 2A. AFRICA. Bodo. Border
Tooth wear and dentoalveolar remodeling are key factors of morphological variation in the Dmanisi mandibles
TLDR
The data show that excessive tooth wear eventually leads to a breakdown of the normal remodeling mechanisms, resulting in dentognathic pathologies, tooth loss, and loss of masticatory function, which is unlikely to have limited the life span of early Homo.
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