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PalaeovertebrataVol. 32, Fasc. 1:27-55 . 2003
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Diversity of triconodont mammals from the early Cretaceous of North Africa-affinities of the AmphilestidsDenise Sigogneau-RussellKeywords: amphilestines; Early Cretaceous; gobiconodontines; North Africa; Teeth; triconodontsCite this article: Sigogneau-Russell D., 2003. Diversity of triconodont mammals from the early Cretaceous of North Africa-affinities of the Amphilestids. Palaeovertebrata 32 (1): 27-55 . AbstractThe mammalian fauna (represented only by isolated teeth) from the early Cretaceous of Morocco includes a number of non-'therian' specimens, characterized by the antero-posterior alignement of the main molar cusps. This assemblage is very heterogenous, including forms (among them Gobiconodon palaios sp. nov.) that can be related to Laurasian triconodonts and several forms so far known only in this part of Gondwana (among them Kryptotherium polysphenos gen. et sp. nov.). The latter, in particular, exemplifies the diversity of the mammalian dental morphology in the Mesozoic, often largely underestimated. In the last part of this paper, the 'therian' affinity of the 'amphilestids' is discussed, on the basis of the arrangement of molar cusps, the interlocking mechanism and the occlusal pattem. Published in Vol. 32, Fasc. 1 (2003) |
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