The Fossil Suidae (Mammalia, Artiodactyla) from Ternifine (Tighenif) Algeria

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Introduction 7 Social Note 7 Abbreviations 8 Material 8 Systematic and Demographic implications of the Tighenif Suidae 8 Dental nomenclature 8 The evolution of hypsodonty in the Metridiochoerus lineage Systematic Description Suidae Gray, 1821 13 Genus Metridiochoerus Hopwood, 1926 13 Species Metridiochoerus andrewsi Hopwood, 1926 13 Recapitulation of the holotype specimen of Metridiochoerus andrewsi and other material from the vicinity of Homa Mountain (Kanjera, Rawi, Kagua) 14 Recapitulation of Orthostonyx brachyops from Olduvai Gorge, Bed II, Tanzania 17 The Gondolin specimens of Metridiochoerus andrewsi 17 Recapitulation of Stylochoerus compactus 18 The Tighenif Suidae 19 Descriptions 21 Upper dentition 21 Deciduous upper cheek teeth 21 Permanent upper cheek teeth 25 Permanent upper molars 25 Lower dentition 31 Lower deciduous cheek teeth 31 Mandible and lower cheek dentition 33 Permanent lower cheek dentition 35 Upper canines 52 Lower canines 52 Discussion 56 Metric variation in, and biochronological implications of, the Tighenif Suidae 56 Dental development 58 Enlarged canines and feeding ecology 60 Conclusions 63 Acknowledgements 64 References 65

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