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Paleobiological Implications of the Ardipithecus ramidus Dentition
Abstract
The Middle Awash Ardipithecus ramidus sample comprises over 145 teeth, including associated maxillary and mandibular sets. These help reveal the earliest stages of human evolution. Ar. ramidus lacks the postcanine megadontia of Australopithecus . Its molars have thinner enamel and are functionally less durable than those of Australopithecus but lack the derived Pan pattern of thin occlusal enamel associated with ripe-fruit frugivory. The Ar. ramidus dental morphology and wear pattern are consistent with a partially terrestrial, omnivorous/frugivorous niche. Analyses show that the ARA-VP-6/500 skeleton is female and that Ar. ramidus was nearly monomorphic in canine size and shape. The canine/lower third premolar complex indicates a reduction of canine size and honing capacity early in hominid evolution, possibly driven by selection targeted on the male upper canine.
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Citations
Cited by
Ardipithecus ramidus and the Paleobiology of Early Hominids
White, T. D., Asfaw, B., Beyene, Y., Haile-Selassie, Y., Lovejoy, C. O., Suwa, G., & WoldeGabriel, G. (2009) · Science · doi:10.1126/science.1175802 · Cited by 676
Self-citationReexamining Human Origins in Light of Ardipithecus ramidus
Lovejoy, C. O. (2009) · Science · doi:10.1126/science.1175834 · Cited by 344
Self-citationThe evolutionary context of the first hominins
Wood, B., & Harrison, T. (2011) · Nature · doi:10.1038/nature09709 · Cited by 329
Lovejoy, C. O., Suwa, G., Simpson, S. W., Matternes, J. H., & White, T. D. (2009) · Science · doi:10.1126/science.1175833 · Cited by 320
Self-citationIsotopic evidence of early hominin diets
Sponheimer, M., Alemseged, Z., Cerling, T. E., Grine, F. E., Kimbel, W. H., Leakey, M. G., Lee-Thorp, J. A., Manthi, F. K., Reed, K. E., Wood, B. A., et al. (2013) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1222579110 · Cited by 290
Metadata
- Authors
- Suwa, G., Kono, R. T., Simpson, S. W., Asfaw, B., Lovejoy, C. O., & White, T. D.
- Venue
- Science
- Published
- 2009-10-02
- Volume
- 326
- Issue
- 5949
- Pages
- 69-99
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2170228902
- Cited by
- 206
- References
- 0
- FWCI
- 92.46
- Type
- journal article
- Language
- en
- Open access
- closed
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