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The landscape at El Anfiteatro area comprises a natural depression situated at the foot of the northern escarpment of the Meseta de Rentería (Fig. 1), which displays an impressive sequence of continental sediments of the Upper Cretaceous assigned to the Neuquén Group (Cazau and Uliana, 1973).This sequence incorporates a set of predominant fluvial deposits, associated aeolic and lacustrine ...The first fossils of short-tailed Pterodactyloide a were discovered in the Upper Jurassic strata of Europe. They were assigned to the genus Pterodactylus (Fig. 55; 'flight finger'), and possessed all the typical features of pterosaurs. Many different species of Pterodactylus have been found, varying mainly in size and the shape of the head.Abelisauridae is a theropod clade with a wide distribution in the Late Cretaceous of Gondwana.Some of the best preserved abelisaurid specimens were recovered from Patagonia (Argentina) such as Skorpiovenator, Ilokelesia, Carnotaurus and Aucasaurus.Here we describe a dorsal part of a neural spine; a middle caudal vertebra; a distal part of a left metatarsal IV; a complete right phalanx IV-1 ...Online. Angel Alejandro Ramírez Velasco, Felisa J. Aguilar, René Hernández-Rivera, José Luis Gudiño Maussán, Marisol Lara Rodríguez, Jesús Alvarado Ortega, Tlatolophus galorum, gen et sp. nov ., a parasaurolophini dinosaur from the upper Campanian of the Cerro del Puebño Formation, Coahuila, norther Mexico, Cretaceous Research, abril de …Furcatoceratops (meaning "forked horned face") is a genus of centrosaurine ceratopsid dinosaur from the Late Cretaceous Judith River Formation of Montana. The type species is Furcatoceratops elucidans. Discovery and naming NSM PV 24660, which is the holotype specimen ... NSM PV 24660 was collected from rocks of the upper Coal Ridge Member ...Saltasaurus (which means "lizard from Salta") is a genus of saltasaurid dinosaur of the Late Cretaceous period of Argentina.Small among sauropods, though still heavy by the standards of modern creatures, Saltasaurus was characterized by a short neck and stubby limbs. It was the first genus of sauropod known to possess armour of bony plates …1 de abr. de 2013 ... Sequence stratigraphy of the lower Upper Cretaceous (Upper Cenomanian - Turonian) of the Eastern Desert, Egypt ... Late Cretaceous transgression.The Upper Cretaceous succession is quite complete, with small hiatuses mostly present in the lower part (Marcinowski Citation 1980; Walaszczyk Citation 1987). The upper Campanian-lowermost Maastrichtian interval treated in this study is exposed near the town of Solec nad Wisłą (Figure 1).zonation came from the Upper Cretaceous sections cropping out in a series of small to. large natural exposures, several quarries and three boreholes located in central, eastern and.Upper Cretaceous rocks investigated in this report include (in ascending order) the middle and upper parts of the Mancos Shale, Mesaverde Group (Formation), and lower part of the North Horn Formation. Nomenclature for these rocks is complex and has been used inconsistently by previousTwo species of the heteromorph ammonite genus Diplomoceras Hyatt are described from the Upper Cretaceous of the James Ross–Seymour Islands area, Antarctica. The late Campanian–early Maastrichtian D. lambi Spath has a relatively high rib density, whereas D. maximum n. sp. has a lower rib density and is known only from the uppermost Maastrichtian of the Lopez de Bertodano Formation on ...Highlights. Two new leptoceratopsids are described from the Campanian and Santonian of Alberta. The Campanian taxon has a unique dentary tooth shape not shared by other leptoceratopsids. The Santonian taxon represents the oldest known leptoceratopsid (∼83 Ma). The Santonian taxon represents the smallest adult-sized ceratopsian from North America.7K; 1914 Report Georgia Plant Fossils From the Upper Cretaceous By Thomas Thurman Filed; 21/Oct/2023 Dinosaurs once walked among magnolia trees in Georgia, they walked among eucalyptus trees, cinnamon and fig trees, all of these stood in our state 84 million years ago while dinosaurs still walked the Earth.We describe a giant titanosaurid sauropod dinosaur discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt, a unit that has produced threeTyrannosaurus-sized theropods and numerous other vertebrate taxa.Paralititan stromeri is the first tetrapod reported from Bahariya since 1935. Its 1.69-meter-long humerus is longer than that of any known Cretaceous sauropod.A new integrated biostratigraphic concept of an Upper Cretaceous series near Novi Pazar, Stara Raška region, the Vardar Zone, for Bajevica-Mur and Gradina, is based on the distribution of benthic ...The Upper Cretaceous Hall Lake Formation is exposed in south-central New Mexico in Sierra County, primarily across the Cutter sag, between the Fra Cristobal Mountains to the north and Caballo Mountains to the south (Kelley and Silver, 1952; Lucas et al., 2019) (Fig. 1). The Hall Lake Formation was previously considered a member of the McRae ...

Lithology and Depositional Environment: The Upper Cretaceous Naparima Hill Formation is a sequence of well-bedded, sometimes bituminous mudstones and shales, with some marls and bituminous lime. The upper part of this formation is made of silicified siltstone/claystone referred to colloquially as "argiline" or "argillite." Cherts are abundant ...The Cretaceous/Palaeogene mass extinction eradicated 76% of species on Earth 1, 2. It was caused by the impact of an asteroid 3, 4 on the Yucatán carbonate platform in the southern Gulf of Mexico ...A palynological and organic geochemical study of the Upper Cretaceous deposits cropping out in the southwestern part of the Transylvanian Basin (Petreşti section) has been carried out. The samples were collected from the marine Bozeş as well as from the overlying continental Sebeş formations, with main focus on the Bozeș Formation.Type of Dinosaur: Theropod Existed: Late Cretaceous, 71-68 Mya Where found: Alberta, Canada Estimated length: 8-10 m (26-33 ft.) Albertosaurus was a member of the dinosaur family Tyrannosauridae (the same family to which T. rex and Gorgosaurus belong). The first Albertosaurus specimen to be found was a partial skull. It was discovered in 1884 on an expedition led by Canadian geologist Joseph ...The European Upper Cretaceous deposits have yielded an abundant record of dinosaurs and other continental vertebrates with a great number of sites discovered in the last decades (e.g., [1,2,3,4,5,6,7,8]).In this context, particularly relevant are the sedimentary units of the Ibero-Armorican domain, mainly distributed in the Lusitanian (Portugal), Iberian (central Spain), Pyrenees (north ...

We describe a giant titanosaurid sauropod dinosaur discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt, a unit that has produced threeTyrannosaurus-sized theropods and numerous other vertebrate taxa.Paralititan stromeri is the first tetrapod reported from Bahariya since 1935. Its 1.69-meter-long humerus is longer than that of any known Cretaceous sauropod.The Cretaceous Continental Scientific Drilling borehole in the Songliao Basin (CCSD-SK-I) (Wang et al., 2008, Wang et al., 2012, Feng et al., 2012), which consists of two borehole cores (that is, the north core and the south core) (Fig. 1 A), offers a unique opportunity for probing into the nature of the terrestrial Cretaceous world.This study aims to establish a chronostratigraphical ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Planktonic foraminifera are one of the most stratigr. Possible cause: Upper Jurassic (Oxfordian) Smackover Formation is a source of hydro-carbon. In eastern Te.