Cited by 69Pleistocene-Era Hominins and ArchaeologyEvolution and Paleontology StudiesMorphological variations and asymmetry

Unique Dental Morphology of Homo floresiensis and Its Evolutionary Implications

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Kaifu, Yousuke, Kono, Reiko T., Sutikna, Thomas, Saptomo, Emanuel Wahyu, Jatmiko, Due Awe, Rokus·2015·PLOS ONE

Abstract

Homo floresiensis is an extinct, diminutive hominin species discovered in the Late Pleistocene deposits of Liang Bua cave, Flores, eastern Indonesia. The nature and evolutionary origins of H. floresiensis' unique physical characters have been intensively debated. Based on extensive comparisons using linear metric analyses, crown contour analyses, and other trait-by-trait morphological comparisons, we report here that the dental remains from multiple individuals indicate that H. floresiensis had primitive canine-premolar and advanced molar morphologies, a combination of dental traits unknown in any other hominin species. The primitive aspects are comparable to H. erectus from the Early Pleistocene, whereas some of the molar morphologies are more progressive even compared to those of modern humans. This evidence contradicts the earlier claim of an entirely modern human-like dental morphology of H. floresiensis, while at the same time does not support the hypothesis that H. floresiensis originated from a much older H. habilis or Australopithecus-like small-brained hominin species currently unknown in the Asian fossil record. These results are however consistent with the alternative hypothesis that H. floresiensis derived from an earlier Asian Homo erectus population and experienced substantial body and brain size dwarfism in an isolated insular setting. The dentition of H. floresiensis is not a simple, scaled-down version of earlier hominins.

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  1. [7]Holliday TW, Franciscus RG. Humeral length allometry in African hominids (sensu lato) with special reference to A.L. 288–1 and Liang Bua 1. PaleoAnthropol. 2012; 2012: 1– 12.
  2. [22]Bailey SE, Hublin JJ, editors. Dental Perspectives on Human Evolution: State of the Art Research in Dental Paleoanthropology Dordrecht: Springer; 2007.
  3. [41]Wood B. Koobi Fora Research Project 4: Hominid Cranial Remains Oxford: Clarendon Press; 1991.
  4. [59]Wood B, Engleman CA. Analysis of the dental morphology of Plio-Pleistocene hominids V. Maxillary postcanine tooth morphology. J Anat. 1988; 161: 1– 35. 3254883 PMC1262088
  5. [81]Wu X, Poirier FE. Human Evolution in China Oxford: Oxford University Press; 1995.

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Authors
Kaifu, Y., Kono, R. T., Sutikna, T., Saptomo, E. W., Jatmiko, & Due Awe, R.
Affiliations
  • National Museum of Nature and Science (JP)
  • University of Wollongong (AU)
Corresponding author
Kaifu, Yousuke
Venue
PLOS ONE
Published
2015-11-18
Volume
10
Issue
11
Pages
e0141614
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2178344487
Cited by
69
References
104
Citations by year
2026: 3 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 8 · 2021: 8 · 2020: 3 · 2019: 18 · 2018: 3 · 2017: 10 · 2016: 2 · 2015: 1
FWCI
22.33
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research Online (University of Wollongong) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Figshare (submittedVersion)
Funders
  • National Museum of Nature and Science
  • Japan Society for the Promotion of Science (24247044)
Topics
  • Social Sciences › Anthropology › Pleistocene-Era Hominins and Archaeology
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
  • Physical Sciences › Mathematics › Geometry and Topology › Morphological variations and asymmetry
Keywords
Homo floresiensis, dental morphology, hominin evolution, Homo erectus, molar morphology, dwarfism, Flores, hominin origins
MeSH terms
Animals, Biological Evolution, Female, Fossils, Male, Tooth, Hominidae

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