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Cosmopolitanism among Gondwanan Late Cretaceous mammals
The occurrence of a highly specialized and distinctive group of extinct mammals, the Sudamericidae (Gondwanatheria), in the Late Cretaceous of Madagascar and India is reported, which is the first evidence of gondwanatheres outside South America and the first indication of cosmopolitanism among Late CRETaceous Gondwanan mammals.
A pug-nosed crocodyliform from the Late Cretaceous of Madagascar
An exquisitely preserved specimen of a new taxon from the Late Cretaceous of Madagascar is reported, possessing an extremely blunt snout, a tall, rounded skull, an anteriorly shifted jaw joint and clove-shaped, multicusped teeth reminiscent of those of some ornithischian dinosaurs.
A giant frog with South American affinities from the Late Cretaceous of Madagascar
A recently discovered Late Cretaceous anuran is described that differs strikingly in size and morphology from extant Malagasy taxa and is unrelated either to them or to the predicted occupants of the Madagascar–Seychelles–India landmass when it separated from Africa 160 million years ago (Mya).
A Late Cretaceous (Maastrichtian) Snake Assemblage from the Maevarano Formation, Mahajanga Basin, Madagascar
The Maevarano Formation assemblage offers no support for an early colonization of Madagascar by snakes ancestral to modern Malagasy boids, with subsequent vicariant evolution, and the repeated pattern of extinct archaic lineages being replaced on Madagascar by basal stocks of extant clades after the Late Cretaceous is a plausible scenario for the origin of the extantMalagasy snake fauna.
Jaw movement, dental function, and diet in the Paleocene multituberculate Ptilodus
The shape and arrangement of cusps and crests and the orientation of wear striations on the cheek teeth of fossil mammals can be used to reconstruct occlusal patterns. Occlusal patterns have been
Stratigraphic Analysis of Upper Cretaceous Rocks in the Mahajanga Basin, Northwestern Madagascar: Implications for Ancient and Modern Faunas
The revised age of the Maevarano Formation serves to expand the global perspective on the K/T event by clarifying the age of a diverse, and arguably the best preserved, sample of Gondwanan vertebrates from the terminal Cretaceous.
Craniofacial Morphology of Simosuchus clarki (Crocodyliformes: Notosuchia) from the Late Cretaceous of Madagascar
Assessment of both external and internal morphological features indicates a habitual head posture in which the preorbital portion of the dermal skull roof was tilted downward at an angle of ∼45°, which strongly indicates a predominantly if not exclusively herbivorous diet.
The discovery of the first unequivocal record of a pre-Late Pleistocene lizard from the island of Madagascar indicates that cordylids, after their occurrence in the Maastrichtian, became extinct on Madagascar, leaving only zonosaurine Gerrhosauridae as extant representatives of Cordyliformes on the island.
A Cretaceous mammal from Tanzania
We report here the discovery of a Cretaceous mammal from the “Red Sandstone Group” of southwestern Tanzania. This specimen is one of only a very few Cretaceous mammals known from Gondwana in general