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. 2021 Jan;5(1):38-45.
doi: 10.1038/s41559-020-01319-6. Epub 2020 Nov 9.

Drimolen cranium DNH 155 documents microevolution in an early hominin species

Jesse M Martin #  1 , A B Leece #  1 , Simon Neubauer  2 , Stephanie E Baker  3 , Carrie S Mongle  4   5 , Giovanni Boschian  3   6 , Gary T Schwartz  7 , Amanda L Smith  8 , Justin A Ledogar  9 , David S Strait  10   11 , Andy I R Herries  1   3
Affiliations

Drimolen cranium DNH 155 documents microevolution in an early hominin species

Jesse M Martin et al. Nat Ecol Evol. 2021 Jan.

Abstract

Paranthropus robustus is a small-brained extinct hominin from South Africa characterized by derived, robust craniodental morphology. The most complete known skull of this species is DNH 7 from Drimolen Main Quarry, which differs from P. robustus specimens recovered elsewhere in ways attributed to sexual dimorphism. Here, we describe a new fossil specimen from Drimolen Main Quarry, dated from approximately 2.04-1.95 million years ago, that challenges this view. DNH 155 is a well-preserved adult male cranium that shares with DNH 7 a suite of primitive and derived features unlike those seen in adult P. robustus specimens from other chronologically younger deposits. This refutes existing hypotheses linking sexual dimorphism, ontogeny and social behaviour within this taxon, and clarifies hypotheses concerning hominin phylogeny. We document small-scale morphological changes in P. robustus associated with ecological change within a short time frame and restricted geography. This represents the most highly resolved evidence yet of microevolutionary change within an early hominin species.

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References

    1. Keyser, A. W. The Drimolen skull: the most complete australopithecine cranium and mandible to date. S. Afr. J. Sci. 96, 189–193 (2000).
    1. Keyser, A. W., Menter, C. G., Moggi-Cecchi, J., Pickering, T. R. & Berger, L. R. Drimolen: a new hominid-bearing site in Gauteng, South Africa. S. Afr. J. Sci. 96, 193–197 (2000).
    1. Herries, A. I. R. et al. Contemporaneity of Australopithecus, Paranthropus and early Homo erectus in South Africa. Science 368, eaaw7293 (2020). - PubMed
    1. Pickering, R. et al. U-Pb-dated flowstones restrict South African hominin record to dry climate phases. Nature 565, 226–229 (2019). - PubMed
    1. Broom, R. Another new type of fossil ape-man (Paranthropus crassidens). Nature 163, 57 (1949).

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