The sedimentary strata were sampled in the lesser Himalayas to probe paleoenvironmental changes across Cretaceous-Paleogene (K-Pg) boundary eastern Tethys. study provides an integrated lithologic and bio-sequence stratigraphic analysis, leading paleoecology interpretations. planktic foraminiferal limestone of late Cretaceous is overlain by lateritic sandstones sandy limestones, latter being Pal...

The recent discovery of a nearly complete ceratopsid skull in the Aguja Formation of southwest Texas supports previous conclusions that the Aguja ceratopsid represents a distinct species, Chasmosaurus mariscalensis. The diagnostic features of C. mariscalensis include an extensive anteromedian projection of the nasal between the premaxillae, erect supraorbital horns, and laterally rounded squamo...

Decades of collecting from exposures of the Upper Cretaceous Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk in Alabama, USA has produced large numbers of isolated Cretalamna (sensu stricto) teeth. Many of these teeth had formerly been assigned to the extinct Late Cretaceous shark Cretalamna appendiculata (Agassiz, 1843), a taxon that is now considered largely restricted to th...

The Cerro Quema Au-Cu deposit is hosted by a dacite dome complex of the Río Formation, Late Campanian-Maastrichtian volcano-sedimentary sequence Panamanian magmatic arc. Its formational age constrained at ~49 Ma field evidences, crosscutting relationships and 40Ar/39Ar geochronology (Corral et al., 2016, Corral, 2021). recent molybdenite Re-Os dates Perelló al. (2020) claim that ore spatially t...

This research derives paleostress tensors for deformation affecting late Cretaceous rocks between Amman and Al-Hallabat, northern Jordan reconstructs the region's tectonic history. Three distinct formations are exposed in investigated area: Wadi As Sir (Turonian), Umm Ghudran (Santonin), silicified limestone (Campanian). The stress inversion is derived from data collected on fault-slip at four ...

Jamaica has a complex geological history with rocks belonging to the Cretaceous Caribbean Large Igneous Province (CLIP) in east and oceanic island arc centre west. We present new geochemical dataset for CLIP correlate this previous datasets using radiolarians planktic foraminifers timescale. The palaeontological dating indicates that two phases of plateau activity – ‘main’ phase late Turonian-m...