Out of all extinct megafaunal mammals the Quaternary, cave bear Ursus spelaeus is one best represented in fossil record. This species has been found to exhibit skeletal morphological adaptations when exploiting varied environmental niches, be that spatially or temporally. Here, we employ geometric morphometrics and phenotypic trajectory analysis explore temporal changes across entire lower mola...

Assemblages de palynomorphes et palynofaciès non polliniques du Crétacé inférieur d'Irak: aperçu la paléobiologie paléoenvironnement. La formation Yamama inférieur, dans le sud l'Irak, est bien connue pour être l'un des principaux réservoirs carbonatés pétrole nombreux champs pétrolifères ce secteur. Toutefois, son environnement dépôt a jusqu'à présent été peu décrit à l'aide techniques palynol...

A newly discovered Konservat-Lagerstätte from the Middle Miocene of the western Olympus Range, Dry Valleys, Antarctica, yields cypridoidean ostracods complete with preserved body and appendages. This is the first record of three-dimensionally fossilized animal soft tissues from the continent. The ostracods are preserved in goethite, secondary after pyrite, representing a novel mode of exception...

This paper discusses the lithostratigraphy of the Xinminbao Group in the Mazongshan area of Gansu Province, northwestern China, and the correlation of its biota. The Xinminbao Group was deposited in a fluviolacustrine setting in Mesozoic graben basins under a semi-arid, subtropical climate. The fossil sites concentrated in the lower part of the group have yielded dinosaurs, mammals and other ve...