The Campanian–Maastrichtian (83–66 Ma) was a period of global climate cooling, featuring significant negative carbon-isotope (δ13C) anomalies, such as the Late Campanian Event (LCE) and the Campanian–Maastrichtian Boundary Event (CMBE). A variety of factors, including changes in temperature, oceanic circulation and gateway opening, have been invoked to explain these δ13C perturbations, but no p...

The study of planktonic foraminifera of the Ilam and Gurpi formations at Sarvestan area (SE of Shiraz) enables me to find the most standard biozones defined in mediterranean regions, especially Tethysian domain. Seven biozones were determined. Biozones I (Dicarinella concavata zone) and II (Dicarinella asymetrica zone) belong to the Ilam Formation and indicate the Late Coniacian-Early Santonian...

the study of planktonic foraminifera of the ilam and gurpi formations at sarvestan area (se of shiraz) enables me to find the most standard biozones defined in mediterranean regions, especially tethysian domain. seven biozones were determined. biozones i (dicarinella concavata zone) and ii (dicarinella asymetrica zone) belong to the ilam formation and indicate the late coniacian-early santonian...

A recommendation of: Ka Yan Wu, Jared Heuck, Frank J. Varriale, and Andrew A. Farke baenid turtle shell from the Mesaverde Formation (Campanian, Late Cretaceous) of Park County, Wyoming, USA https://doi.org/10.31233/osf.io/uk3ac

Studying the evolution and biogeographic distribution of dinosaurs during the latest Cretaceous is critical for better understanding the end-Cretaceous extinction event that killed off all non-avian dinosaurs. Western North America contains among the best records of Late Cretaceous terrestrial vertebrates in the world, but is biased against small-bodied dinosaurs. Isolated teeth are the primary...

Pentaceratops sternbergii is an index fossil of the Kirtlandian LVA, and is known from the Fruitland and Kirtland formations, San Juan Basin, New Mexico and from the Williams Fork Formation of Colorado. We remove Chasmosaurus mariscalensis (Aguja Formation, Big Bend National Park, Texas) from Chasmosaurus and make it the type species of a new genus, Agujaceratops. Supposed chasmosaurine endemis...

The Late Cretaceous is marked by geodynamical changes including Africa-Eurasia convergence that resulted in the narrowing of Tethys Ocean and ophiolite obduction along southern margin various continental blocks eastern Tethys. Geochemical mineralogical analyses were performed on Shahneshin section (Zagros Basin - Tethys), to explore consequences this evolution oceanic circulation, estimate role...

This work characterizes for the first time 500–700 m-thick uppermost Cretaceous continental sedimentary succession of Allueva Fm recorded in northeastern margin Iberian basin, Montalbán subbasin (Maestrazgo domain, Spain). The middle-upper Campanian age this unit constrained here by new paleomagnetic and biostratigraphic data involves major revision previous stratigraphic palaeogeographic inter...

Uranium–Pb ages of detrital zircons taken from seven sandstone samples collected at what were previously called “Paleogene strata” in the Nagasaki and Nishisonogi Peninsula, northwestern Kyushu, SW Japan are measured. Depositional three sandstones peninsula revealed to be e Campanian–Maastrichtian (Late Cretaceous) or younger. two Terashima Island off west coast Peninsula likewise dated as Camp...

BACKGROUND The origin of hadrosaurid dinosaurs is far from clear, mainly due to the paucity of their early Late Cretaceous close relatives. Compared to numerous Early Cretaceous basal hadrosauroids, which are mainly from Eastern Asia, only six early Late Cretaceous (pre-Campanian) basal hadrosauroids have been found: three from Asia and three from North America. METHODOLOGY/PRINCIPAL FINDINGS...