Lower Cretaceous (Aptian-Albian) sandstones of the Ghaggar-Hakra Formation in Barmer Basin northwest Rajasthan, India, have a complex depositional history which is confusing given they are quartzose arenites. The heavy mineral grains very well-rounded, and assemblage dominated by zircon rutile suggesting that sediments been recycled multiple times, whilst presence staurolite indicates metapelit...

—Better understanding of the functional biology of early angiosperms may clarify ecological factors surrounding their origin and early radiation. Phylogenetic studies identify Amborella, Nymphaeales (water lilies), Austrobaileyales, and Chloranthaceae as extant lineages that branched before the radiation of core angiosperms. Among living plants, these lineages may represent the best models for ...

The biostratigraphy of platform carbonates and adjacent basins outcropping in the Prebetic Zone of Alicante, south-eastern Spain, is presented. With this aim, 42 sections from 13 major outcrops, of Aptian–Middle Cenomanian age, were analysed. Ten biostratigraphic units based upon benthonic foraminifers have been distinguished within this interval. Comparison with other previously published bioz...

The historical view of a uniformly warm Cretaceous is being increasingly challenged by the accumulation of new data hinting at the possibility of glacial events, even during the Cenomanian-Turonian (∼95 Myr ago), the warmest interval of the Cretaceous. Here we show that the palaeogeography typifying the Cenomanian-Turonian renders the Earth System resilient to glaciation with no perennial ice a...

Brontomerus mcintoshi is a new genus and species of sauropod dinosaur from the Hotel Mesa Quarry in Grand County, Utah, USA, in the upper part of the Ruby Ranch Member (Aptian–Albian) of the Lower Cretaceous Cedar Mountain For− mation. It is known from at least two fragmentary specimens of different sizes. The type specimen is OMNH 66430, the left ilium of a juvenile individual; tentatively ref...

Abstract The Early Cretaceous is an important time of transition in Earth history, marked by a succession oceanic anoxic events and carbon cycle perturbations that drove changes on land the ocean. need for more precise geochronologic constraints terrestrial sediments age record faunal floral transitions especially critical. Cedar Mountain Formation (CMF) continental lithostratigraphic unit host...