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Volumn 318, Issue 5855, 2007, Pages 1443-1446

Extended male growth in a fossil hominin species

Author keywords

[No Author keywords available]

Indexed keywords

FOSSIL; GROWTH; HOMINID; MALE; MATURATION; SEXUAL DIMORPHISM;

EID: 36749082350     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1149211     Document Type: Article
Times cited : (87)

References (38)
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    • We refer to differences in skull size and morphology between males and females, which have been shown to correlate with sexual dimorphism in body mass (36).
    • We refer to differences in skull size and morphology between males and females, which have been shown to correlate with sexual dimorphism in body mass (36).
  • 8
    • 36749031914 scopus 로고    scopus 로고
    • Bimaturism, defined as sex differences in the timing of cessation of growth (17).
    • Bimaturism, defined as sex differences in the timing of cessation of growth (17).
  • 12
    • 36749018786 scopus 로고    scopus 로고
    • C. K. Brain, in Swartkrans: A Cave's Chronicle of Early Man, C. K. Brain, Ed. (Monograph 8, Transvaal Museum, Pretoria, South Africa, 1993), pp. 23-33.
    • C. K. Brain, in Swartkrans: A Cave's Chronicle of Early Man, C. K. Brain, Ed. (Monograph 8, Transvaal Museum, Pretoria, South Africa, 1993), pp. 23-33.
  • 13
    • 36749052512 scopus 로고    scopus 로고
    • Further information on materials and methods is available as supporting material on Science Online.
    • Further information on materials and methods is available as supporting material on Science Online.
  • 14
    • 33747187288 scopus 로고    scopus 로고
    • Cambridge Univ. Press, New York, ed. 2
    • S. Hillson, Teeth (Cambridge Univ. Press, New York, ed. 2, 2005).
    • (2005) Teeth
    • Hillson, S.1
  • 15
    • 36749053695 scopus 로고    scopus 로고
    • In specimens with M3 recently erupted (such as SK 48, TM 1517, and DNH 8), small dentine islands are present on the M1s. Given schedules of dental development in P. robustus [M1 erupted at 3 years and M3 erupted at approximately 9 years (37)], this implies that tooth wear on M1 began to expose dentine after 6 years. M2 erupted approximately halfway between M1 and M3. If it underwent comparable amounts of wear to M1, then individuals of age rank 4 (which have exposed dentine on M2) are at least 3 years older than those in age rank 1.
    • In specimens with M3 recently erupted (such as SK 48, TM 1517, and DNH 8), small dentine islands are present on the M1s. Given schedules of dental development in P. robustus [M1 erupted at 3 years and M3 erupted at approximately 9 years (37)], this implies that tooth wear on M1 began to expose dentine after 6 years. M2 erupted approximately halfway between M1 and M3. If it underwent comparable amounts of wear to M1, then individuals of age rank 4 (which have exposed dentine on M2) are at least 3 years older than those in age rank 1.
  • 18
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    • P. M. Kappeler, C. P. van Schaik, Eds, Cambridge Univ. Press, Cambridge
    • J. M. Setchell, P. C. Lee, in Sexual Selection in Primates, P. M. Kappeler, C. P. van Schaik, Eds. (Cambridge Univ. Press, Cambridge, 2004), pp. 175-195.
    • (2004) Sexual Selection in Primates , pp. 175-195
    • Setchell, J.M.1    Lee, P.C.2
  • 28
    • 36749012643 scopus 로고    scopus 로고
    • We do not assign sexes to mandibles, because they are generally more fragmentary and there is greater overlap in male and female mandible size in sexually dimorphic hominoids
    • We do not assign sexes to mandibles, because they are generally more fragmentary and there is greater overlap in male and female mandible size in sexually dimorphic hominoids.
  • 30
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    • B .B. Smuts, D. L. Cheney, R. M. Seyfarth, R. W. Wrangham, T. T. Struhsaker, Eds, Univ. of Chicago Press, Chicago
    • A. Pusey, C. Packer, in Primate Societies, B .B. Smuts, D. L. Cheney, R. M. Seyfarth, R. W. Wrangham, T. T. Struhsaker, Eds. (Univ. of Chicago Press, Chicago, 1987), pp. 250-266.
    • (1987) Primate Societies , pp. 250-266
    • Pusey, A.1    Packer, C.2
  • 38
    • 36749083139 scopus 로고    scopus 로고
    • This work stems from excavations at Drimolen, supported by grants from the L. S. B. Leakey Foundation and the Department of Science and Technology in South Africa. Further financial support was provided to C.A.L. by the Royal Society, UK. A.W.K. and C.G.M. thank D. and J. Smith, on whose property Drimolen is situated, for permission to conduct the excavation and for their assistance. J.M.C. received support from the Italian Ministry of Foreign Affairs Direzione Generale per la Promozione e la Cooperazione Culturale, ufficio V, Archaeology, and the Italian Embassy and Italian Cultural Institute in Pretoria. We also thank D. Shima and D. Kekane for their continued help with the Drimolen excavation; B. Zipfel and S. Potze for assistance with specimens; and Z. Alemseged, B. Bradley, C. Dean, W. Kimbel, S. Leigh, M. Plavcan, J. Setchell, J. Scott, and F. Spoor for discussion and comments
    • This work stems from excavations at Drimolen, supported by grants from the L. S. B. Leakey Foundation and the Department of Science and Technology in South Africa. Further financial support was provided to C.A.L. by the Royal Society, UK. A.W.K. and C.G.M. thank D. and J. Smith, on whose property Drimolen is situated, for permission to conduct the excavation and for their assistance. J.M.C. received support from the Italian Ministry of Foreign Affairs (Direzione Generale per la Promozione e la Cooperazione Culturale, ufficio V, Archaeology), and the Italian Embassy and Italian Cultural Institute in Pretoria. We also thank D. Shima and D. Kekane for their continued help with the Drimolen excavation; B. Zipfel and S. Potze for assistance with specimens; and Z. Alemseged, B. Bradley, C. Dean, W. Kimbel, S. Leigh, M. Plavcan, J. Setchell, J. Scott, and F. Spoor for discussion and comments.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.