Since 1950, diverse assemblages of Mesozoic vertebrates have been described from the Galve area (Teruel Province, NE Spain). More than fifty taxa have been noted, including fishes, crocodyliforms, pterosaurs, dinosaurs and mammals. The Galve fossil sites occur in an Upper Jurassic to Lower Cretaceous succession spanning some 30 myr, divided into five formations, representing marginal marine and...

Premise of research. During the ongoing investigation of Upper Triassic–Lower Cretaceous plant macrofossils from Svalbard, Norway, some ginkgoalean leaf fossils were found from Carnian and Aptian deposits of Spitsbergen and Edgeøya that represent new ginkgophyte species. One new species is described asBaiera aquilonia sp. nov., and one ginkgophyte leaf is assigned to Ginkgoites sp. Along with t...

The Lower Cretaceous Carbonate deposits of the Dariyan Formation of the HighZagros Belt are mainly composed of thick to medium bedded limestone. These depositscontain abundant and diversified benthic foraminifera which have been recovered fromcarbonate rocks. A rich assemblage of microfossils with characteristic: Palorbitolinalenticularis (Blumenbach), Mesorbitolina subconcava (Leymerie), Mesor...

the echinoid fauna of basab area (aptian), northwest of kerman, is fairly rich and diverse, represented by pygaulidae, acropeltidae, emiratiidae, toxasteridae, holectypidae, stomechinidae and saleniidae. four regular echinoid species, among which three are new, assigned to genus tetragramma agassiz, are described and illustrated in the present paper. the new species are tetragramma basabensis, ...

Segmentation of the Guyanas continental margin South America is inherited from dual-phase Mesozoic rifting history controlling first-order post-rift sedimentary architecture. The divided into two segments by a transform marginal plateau (TMP), Demerara Rise, Central and Equatorial Atlantic domains. This paper investigates heterogeneities in systems at mega-regional scale (>1000 km). Re-sampl...

The biostratigraphic distribution of orbitolinids for the Barremian SE France proposed hereafter is calibrated on ammonite biozonation. This work based study eleven sections with associated to macrofossils (ammonites and/or echinids) significant in terms biostratigraphy or overlain levels bearing above macrofossils.

Some of the major Carbon cycle perturbations Phanerozoic occurred during Aptian, in relation to magmatism. The highest temperatures reconstructed for Cretaceous Period correspond Oceanic Anoxic Event early Aptian (OAE 1a), an episode accelerated global change. Here we present a chemostratigraphic study based on osmium isotopes integrated with high-resolution Carbon-Oxygen stable isotope data fr...

Pedogenic carbonate samples collected from three Lower Cretaceous (Aptian–Albian) fossil localities in Texas and Oklahoma were analyzed to develop paleoatmospheric pCO2 estimates by measuring the stable carbon isotopes of pedogenic calcite their co-existing occluded organic matter. Calcite ?13C values ranged ?10.9‰ ?4.4‰ while matter ?27.3‰ ?21.1‰. These isotope measurements combined with tempe...

The representatives of the genus Epicheloniceras Casey, 1954 from Middle Aptian Mangyshlak, Western and Southern Turkmenistan are described.