Predation upon Hatchling Dinosaurs by a New Snake from the Late Cretaceous of India

A new snake from Upper Cretaceous rocks in India is found with hatchling sauropod dinosaurs, demonstrating that large, gape-limited snakes were probably capable of taking in moderate-sized vertebrate prey

Paleobiology of titanosaurs: reproduction, development, histology, pneumaticity, locomotion and neuroanatomy from the South American fossil record

Fil: García, Rodolfo A.. Instituto de Investigación en Paleobiología y Geología. Museo Provincial Carlos Ameghino. Cipolletti; ArgentinaFil: Salgado, Leonardo. Instituto de Investigación en Paleobiología y Geología. General Roca. Río Negro; ArgentinaFil: Fernández, Mariela. Inibioma-Centro Regional Universitario Bariloche. Bariloche. Río Negro; ArgentinaFil: Cerda, Ignacio A.. Instituto de Investigación en Paleobiología y Geología. Museo Provincial Carlos Ameghino. Cipolletti; ArgentinaFil: Carabajal, Ariana Paulina. Museo Carmen Funes. Plaza Huincul. Neuquén; ArgentinaFil: Otero, Alejandro. Museo de La Plata. Universidad Nacional de La Plata; ArgentinaFil: Coria, Rodolfo A.. Instituto de Paleobiología y Geología. Universidad Nacional de Río Negro. Neuquén; ArgentinaFil: Fiorelli, Lucas E.. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica. Anillaco. La Rioja; Argentin

Early miocene mammals from central Kutch (Gujarat), Western India: implications for geochronology, biogeography, eustacy and intercontinental dispersals

Terrestrial mammals comprising eight taxa (Deinotherium sindiense, Gomphotheriidae indet., Brachypotherium sp., Parabrachyodus hyopotamoides, Sivameryx palaeindicus, Conohyus sindiensis or Tetraconodon malensis, Giraffokeryx punjabiensis, and Dorcatherium minus) occur at Pasuda in the Khari Nadi Formation of central Kutch, Gujarat State, Western India. Although restricted, the assemblage, correlated biochronologically to the latest Burdigalian, is, collectively, the most comprehensive sample of early Miocene terrestrial mammals known from Western India. The presence of two proboscidean taxa (Deinotheriidae, Gomphotheriidae) in the assemblage documents the Out-of-Africa proboscidean dispersal event at the end of the Early Miocene, suggesting that the assemblage is younger than 17.5 Ma. The Kutch mammal assemblages provide evidence for other Early Miocene faunal exchanges between Afro-Arabia and the Indian subcontinent, including anthracotheres, suids, tragulids and possibly giraffids. The new collections assume significance in view of the hitherto poorly known nature of the earliest Neogene fossil mammals of India, not only from Kutch but from broadly coeval deposits including the Murree, Dagshai/Kasauli, and Dharamsala beds in the NW Outer Himalaya, and the Kargil Formation of Ladakh in the NW Trans- Himalaya

Optimisation du cycle de vie de la Pravastatine avec la mise sur le marché de Pravadual®, premier traitement préventif combiné destiné au patient coronarien

REIMS-BU Santé (514542104) / SudocSudocFranceF

Late cretaceous origin of the rice tribe provides evidence for early diversification in Poaceae

Rice and its relatives are a focal point in agricultural and evolutionary science, but a paucity of fossils has obscured their deep-time history. Previously described cuticles with silica bodies (phytoliths) from the Late Cretaceous period (67-65 Ma) of India indicate that, by the latest Cretaceous, the grass family (Poaceae) consisted of members of the modern subclades PACMAD (Panicoideae-Aristidoideae-Chloridoideae-Micrairoideae-Arundinoideae-Danthonioideae) and BEP (Bambusoideae-Ehrhartoideae-Pooideae), including a taxon with proposed affinities to Ehrhartoideae. Here we describe additional fossils and show that, based on phylogenetic analyses that combine molecular genetic data and epidermal and phytolith features across Poaceae, these can be assigned to the rice tribe, Oryzeae, of grass subfamily Ehrhartoideae. The new Oryzeae fossils suggest substantial diversification within Ehrhartoideae by the Late Cretaceous, pushing back the time of origin of Poaceae as a whole. These results, therefore, necessitate a re-evaluation of current models for grass evolution and palaeobiogeography