Print ISSN: 0031-0247
Online ISSN: 2274-0333
Hypoplasia: CT-scan or naked eye?
Eocene otoliths (Clinchfield Formation), Georgia
New elephant cranium from early Pliocene Ileret, Kenya
Early adaptive radiation of Theridomorpha
Evolution et extinction des reptiles marins au Mésozoïque
Diversity of triconodont mammals from the early Cretaceous of North Africa-affinities of the Amphilestidsamphilestines; Early Cretaceous; gobiconodontines; North Africa; Teeth; triconodonts
Cite 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 .
The 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)