The best-documented example of rapid climate change that characterized the so-called 'greenhouse world' took place at the time of the Palaeocene-Eocene boundary: introduction of isotopically light carbon into the ocean-atmosphere system, accompanied by global warming of 5-8 degrees C across a range of latitudes, took place over a few thousand years. Dissociation, release and oxidation of gas hy...

Toxoceratoides (Ancyloceratina, Helicancylidae) is a lower Aptian (Lower Cretaceous) small heteromorph ammonoid mainly known by samples of fragmentary specimens. In the present work, we study sample 145 specimens this genus from Deshayesites forbesi, deshayesi and Dufrenoyia furcata zones (lower Aptian) vicinity village Les Ferres (southeastern France). The taxa recognized (in stratigraphic ord...

Abstract. Extensive black shale deposits formed in the Early Cretaceous South Atlantic, supporting notion that this emerging ocean basin was a globally important site of organic carbon burial. The magnitude burial marine basins is known to be controlled by various tectonic, oceanographic, hydrological, and climatic processes acting on different temporal spatial scales, nature relative importanc...

It is suggested that the source materials of the English Aptian fuller's earths were soils of the Anglo-Belgian Land and that montmorillonite is the characteristic clay mineral of marine deposits formed when old land surfaces of low relief are transgressed. When the origin of English fuller's earths was discussed in the 1930's, Grim (1933, 1935) and Newton (1934) engaged in a polemic. Grim main...

Sauropod teeth from six localities in Japan were reexamined. Basal titanosauriforms were present in Japan during the Early Cretaceous before Aptian, and there is the possibility that the Brachiosauridae may have been included. Basal titanosauriforms with peg-like teeth were present during the "mid" Cretaceous, while the Titanosauria with peg-like teeth was present during the middle of Late Cret...

Based on specimens originally referred to as "Dastilbe minor", a nomem-nudum, we describe a new genus of Chanidae †Nanaichthys longipinnus nov. gen. and sp. which exhibits several diagnostic characters such as the absence of orbitosphenoid and basisphenoid, anteriorly displaced quadrate-mandibular articulation, laterally expanded supraneurals, an acute angle between the preopercular limbs, expa...