Abstract
It is widely understood that Hominoidea (apes and humans) and Cercopithecoidea (Old World monkeys) have a common ancestry as Catarrhini deeply rooted in Afro-Arabia1,2,3,4. The oldest stem Catarrhini in the fossil record are Propliopithecoidea, known from the late Eocene to early Oligocene epochs (roughly 35–30 Myr ago) of Egypt, Oman and possibly Angola5,6,7,8,9,10. Genome-based estimates for divergence of hominoids and cercopithecoids range into the early Oligocene11; however, the mid-to-late Oligocene interval from 30 to 23 Myr ago has yielded little fossil evidence documenting the morphology of the last common ancestor of hominoids and cercopithecoids, the timing of their divergence, or the relationship of early stem and crown catarrhines. Here we describe the partial cranium of a new medium-sized (about 15–20 kg) fossil catarrhine, Saadanius hijazensis, dated to 29–28 Myr ago. Comparative anatomy and cladistic analysis shows that Saadanius is an advanced stem catarrhine close to the base of the hominoid–cercopithecoid clade. Saadanius is important for assessing competing hypotheses about the ancestral morphotype for crown catarrhines1,12,13,14, early catarrhine phylogeny12,15 and the age of hominoid–cercopithecoid divergence11. Saadanius has a tubular ectotympanic but lacks synapomorphies of either group of crown Catarrhini, and we infer that the hominoid–cercopithecoid split happened later, between 29–28 and 24 Myr ago.
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References
Benefit, B. R. & McCrossin, M. L. Facial anatomy of Victoriapithecus and its relevance to the ancestral cranial morphology of Old World monkeys and apes. Am. J. Phys. Anthropol. 92, 329–370 (1993)
Benefit, B. R. & McCrossin, M. L. in The Primate Fossil Record (ed. Hartwig, W. C.) 241–253 (Cambridge Univ. Press, 2002)
Harrison, T. in The Primate Fossil Record (ed. Hartwig, W. C.) 311–338 (Cambridge Univ. Press, 2002)
Miller, E. R. et al. Systematics of early and middle Miocene Old World monkeys. J. Hum. Evol. 57, 195–211 (2009)
Pickford, M. Première découverte d’une faune mammalienne terrestre paléogène d’Afrique sub-saharienne. C. R. Acad. Sci. Paris (II). 302, 1205–1210 (1986)
Simons, E. L. New faces of Aegyptopithecus from the Oligocene of Egypt. J. Hum. Evol. 16, 273–289 (1987)
Thomas, H. et al. in Fossil Vertebrates of Arabia. With Emphasis on the Late Miocene Faunas, Geology, and Palaeoenvironments of the Emirate of Abu Dhabi, United Arab Emirates (eds Whybrow, P. J. & Hill, A.) 430–442 (Yale Univ. Press, 1999)
Rasmussen, D. T. in The Primate Fossil Record (ed. Hartwig, W. C.) 203–220 (Cambridge Univ. Press, 2002)
Seiffert, E. R. Evolution and extinction of Afro-Arabian primates near the Eocene-Oligocene boundary. Folia Primatol. (Basel) 78, 314–327 (2007)
Simons, E. L., Seiffert, E. R., Ryan, T. M. & Attia, Y. A remarkable female cranium of the early Oligocene Aegyptopithecus zeuxis (Catarrhini, Propliopithecidae). Proc. Natl Acad. Sci. USA 104, 8731–8736 (2007)
Steiper, M. E., Young, N. M. & Sukarna, T. Y. Genomic data support the hominoid slowdown and an early Oligocene estimate for the hominoid–cercopithecoid divergence. Proc. Natl Acad. Sci. USA 101, 17021–17026 (2004)
Harrison, T. The phylogenetic relationships of the early catarrhine primates: a review of the current evidence. J. Hum. Evol. 16, 41–80 (1987)
Rae, T. C. in Function, Phylogeny, and Fossils. Miocene Hominoid Evolution and Adaptations (eds Begun, D. R., Ward, C. V. & Rose, M. D.) 59–77 (Plenum, 1997)
Delson, E. & Andrews, P. in Phylogeny of the Primates. A Multidisciplinary Approach (eds Luckett, W.P. & Szalay, F.S.) 405–446 (Plenum, 1975)
Leakey, M. G. et al. Similarities in Aegyptopithecus and Afropithecus facial morphology. Folia Primatol. (Basel) 56, 65–85 (1991)
Leakey, M. G., Ungar, P. S. & Walker, A. A new genus of large primate from the late Oligocene of Lothidok, Turkana District, Kenya. J. Hum. Evol. 28, 519–531 (1995)
Begun, D. R. in Phylogeny of the Neogene Hominoid Primates of Eurasia (eds de Bonis, L., Koufos, G.D. & Andrews, P.) 231–253 (Cambridge Univ. Press, 2001)
Harrison, T. A taxonomic revision of the small catarrhine primates from the early Miocene of East Africa. Folia Primatol. (Basel) 50, 59–108 (1988)
Al-Shanti, A. M. S. Oolitic iron ore deposits in Wadi Fatima between Jeddah and Mecca, Saudi Arabia. Saudi Arabian Dir. Gen. Min. Resources Bull. 2, 1–51 (1966)
Srivastava, S. K. & Binda, P. L. Depositional history of the early Eocene Shumaysi Formation, Saudi Arabia. Palynology 15, 47–61 (1991)
Abou Ouf, M. A. & Gheith, A. M. in Sedimentation and Tectonics of Rift Basins: Red Sea and Gulf of Aden (eds Purser, B. H. & Bosence, D. W. J.) 135–145 (Chapman & Hall, 1998)
Moltzer, J. G. & Binda, P. L. Micropaleontology and palynology of the middle and upper members of the Shumaysi Formation, Saudi Arabia. Saudi Arabian Dir. Gen. Min. Resources Bull. 4, 47–76 (1981)
Féraud, G., Zumbo, V. & Sebai, A. 40Ar/39Ar age and duration of tholeiitic magmatism related to the early opening of the Red Sea rift. Geophys. Res. Lett. 18, 195–198 (1991)
Rae, T. C. Mosaic evolution in the origin of the Hominoidea. Folia Primatol. (Basel) 70, 125–135 (1999)
Leakey, R. E., Leakey, M. G. & Walker, A. C. Morphology of Afropithecus turkanensis from Kenya. Am. J. Phys. Anthropol. 76, 289–307 (1988)
Rae, T. C. Miocene hominoid craniofacial morphology and the emergence of great apes. Ann. Anat. 186, 417–421 (2004)
Kelley, J. in Function, Phylogeny, and Fossils. Miocene Hominoid Evolution and Adaptations (eds Begun, D.R., Ward, C.V. & Rose, M.D.) 173–208 (Plenum, 1997)
Begun, D. R. in The Primate Fossil Record (ed. Hartwig, W. C.) 221–240 (Cambridge Univ. Press, 2002)
Teaford, M. F., Beard, K. C., Leakey, R. E. & Walker, A. New hominoid facial skeleton from the Early Miocene of Rusinga Island, Kenya, and its bearing on the relationship between Proconsul nyanzae and Proconsul africanus. J. Hum. Evol. 17, 461–477 (1988)
Goloboff, P., Farris, J. & Nixon, K. TNT, a free program for phylogenetic analysis. Cladistics 24, 774–786 (2008)
Acknowledgements
We thank Saudi Geological Survey (Jeddah) officials Z. A. Nawab, A. M. Al Attas and A. F. Al Khattabi for the invitation to undertake fieldwork in western Saudi Arabia; E. Mbua (National Museums of Kenya) for permission to study of catarrhine fossils in her care; A. Walker for access to micro-CT facilities at Pennsylvania State University; T. Ryan for scanning; A. Rountrey, D. Erickson and B. Miljour for assistance with interpretation of micro-CT scans, photography, and figures; T. Harrison for phylogenetic discussion and advice; E. Seiffert for CT images and photographs of propliopithecoid fossils; B. Benefit for information on the ectotympanic of Victoriapithecus; D. T. Rasmussen and M. Gutiérrez for information about fossil mammals from Lothidok, Kenya; M. Halawani, A. Memesh, S. Dini, C. Spencer and G. W. Hughes for information about the geology and lithostratigraphy of the research area; and E. Seiffert for improving the manuscript. The research was supported by a US National Science Foundation grant (EAR-0517773) to P.D.G.
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I.S.Z., Y.A.A., M.A.A., A.H.N., A.M.A., S.A.A., A.O.N., A.H.M. and J.A.W. undertook the palaeontological survey, fossil collection and field geology. W.J.S. prepared the fossils. G.F.G., L.M.M. and W.J.S. performed the comparative study and phylogenetic analysis of catarrhine primates. L.M.M. and P.D.G. coordinated the micro-CT scanning. G.F.G. and W.J.S. made comparative studies of the non-primate mammalian fauna and identified the taxa. All authors contributed to the manuscript.
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This file contains Supplementary Tables 1- 6, References, Supplementary Notes on associated fauna and biochronology and Supplementary Figures 1-3 with legends. (PDF 8797 kb)
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Zalmout, I., Sanders, W., MacLatchy, L. et al. New Oligocene primate from Saudi Arabia and the divergence of apes and Old World monkeys. Nature 466, 360–364 (2010). https://doi.org/10.1038/nature09094
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DOI: https://doi.org/10.1038/nature09094
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