The facies distribution in time and space of sedimentary successions is controlled by a complex interplay between physical, chemical biological processes, which are nowadays difficult to construe from the geological record. Numerical models constitute valuable tool identify quantify such controlling factors permitting reliable 3D extrapolation prediction stratigraphic architectures beyond outcr...

We investigate the present-day orogenic architecture of Pyrenean-Cantabrian junction corresponding to a boundary between inverted rift segments using seismic interpretation, field data, and borehole information. This was formerly attributed major NNE-SSW striking Pamplona transfer fault segmenting Basque-Cantabrian Mauléon basins during both rifting convergence. Our study shows that results fro...

Fossils discovered in Lower Cretaceous (Aptian) rocks in the Tenere Desert of central Niger provide new information about spinosaurids, a peculiar group of piscivorous theropod dinosaurs. The remains, which represent a new genus and species, reveal the extreme elongation and transverse compression of the spinosaurid snout. The postcranial bones include blade-shaped vertebral spines that form a ...

Negative carbon isotope excursions from a new record of terrestrial organic carbon (dCorg= 2.3x) and from marine carbonate (d13Ccarb= 0.8x) were used to calculate a methane hydrate release of 1137 Gt of carbon over ~1 Myr during the early Aptian (Early Cretaceous). We show how the coincident and sudden near-cessation of subduction along the northern boundaries of the Farallon plate resulted in ...

The crab genus Rathhunopon is exclusively known from Cretaceous rocks, mainly from Europe. Here two new European localities are presented: one in the Albian/Cenomanian of northern Spain yielding well-preserved specimens of Rathhunopon ohesum, and one from the lower Aptian at the German-Austrian border yielding Rathhunopon schrattenkalkensis n. sp. Both are found in association with coral reefs....

calcareous nannofossils in boundary of tirgan and sarcheshmeh formations at qalezo section have been studied. this section is situated in the west of kopet-dagh basin. in this study 35 nannoplankton species of 17 genera were identified. according to the first occurrence of index species and fossil assemblages two calcareous nannofossil biozones (cc7-cc8) of sissingh (1997) have been recognized....

Cretaceous aeolian deposition is important for understanding variations of the tropical−subtropical atmospheric circulation under greenhouse background. Nevertheless, detailed records revealing response to rising CO2 are still lacking. To shed light on their linkage, we examined Early stratigraphic evolution Hekou Group in Baiyin-Jingyuan Basin, northern China, using multiple methods. The resul...