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Abstract Upper Cretaceous strata of the Mahajanga Basin, northwestern Madagascar, yield some of the most significant and exquisitely preserved vertebrate fossils known from Gondwana. The sedimentology of these strata and their stratigraphic relations have been the focus of renewed geological investigations during the course of five expeditions since 1993. We here designate stratotypes and ...Abstract. The cranial anatomy of Dinilysia patagonica, a terrestrial snake from the Upper Cretaceous of Argentina, is redescribed and illustrated, ...IN THIS PAPER the discovery in Japan of smaller Foraminifera from the Upper Cretaceous strata is recorded for the firsi: time. This contribution, in addition to ...(S.) scabra was recorded from the upper Albian of the South Rifian Ridges, northwestern Morocco (Benzaggagh, 2016) and Sinaï in Egypte; the Coniacian-Santonian, the Campanian, and probably the Maastrichtian of Sinaï; the Upper Cretaceous of Tunisia, England, Portugal, Bulgaria, Italy, France, Austria, Germany, Madagascar, and India (El-Hedeny ...

... Upper Cretaceous (Senonian) formations. Figure 1 Facies map and schematic paleogeographic reconstruction of the Moroccan Atlas region during the Late ...The Upper Cretaceous Qingshankou Formation in the Songliao Basin, NE China is known to contain excellent petroleum source rocks. In addition, it serves as a valuable record to study depositional conditions within the water column and climatic change.Nevertheless, the Upper Cretaceous source rocks are mostly matured, but its hydrocarbon generation is limited because of lower TOC (only 0.5–0.8%) and thinner thickness (only 10 m). The main effective source rock is the AG Group in the Lower Cretaceous, which is distributed throughout the area.Carnotaurinae is a subfamily of the theropod dinosaur family Abelisauridae.It includes the dinosaurs Aucasaurus (from Argentina), Carnotaurus (from Argentina). The group was first proposed by American paleontologist Paul Sereno in 1998, defined as a clade containing all abelisaurids more closely related to Carnotaurus than to Majungasaurus.Meniscoessus robustus – Named by Othniel Charles Marsh in 1889. Remains were discovered in Maastrichtian (Upper Cretaceous) and possibly Paleocene strata of Wyoming, Montana, and South Dakota, USA, and the St. Mary's River Formation of Canada. The weight of this species is estimated to have been about 3.3 kilograms (7.3 lb).

Sauropod hiatus. The sauropod hiatus is a period in the North American fossil record for most of the Late Cretaceous noted for its lack of sauropod remains. It may represent an extinction event, possibly caused by competition with ornithischian herbivores, habitat loss from the expansion of the Western Interior Seaway, or both.Upper Cretaceous rocks and Lower Cretaceous rocks of Albian age, constitute a stratigraphic sequence that rests with marked angular discordance on older Creta­ ceous (Neocomian, Okpikruak formation) and pre- Cretaceous rocks. Lower Cretaceous rocks (fig. 30) include up to 12,000 feet of predominantly marine shale, and up to ... ….

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Megaraptora is a theropod clade known from former Gondwana landmasses and Asia. Most members of the clade are known from the Early to Late Cretaceous (Barremian-Santonian), with Maastrichtian ...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 ...The irregular spatial distribution is explained by the fact that in the most of the West Siberian sedimentary basin the Cretaceous is overlapped by Cenozoic sediments (e.g. Kontorovich et al., 2014). Upper Cretaceous outcrops are only available at the flanks of the basin, and in the Yenisei–Khatanga trough in the east.

The Cretaceous sedimentary basins in Mongolia are grouped into three major depositional provinces (Altai, Khangai-Khentei and Gobi) with ten basins (basins of Great Lakes, Valley of Lakes, Arkhangai, Onon, Choir-Nyalga, Choibalsan, Transaltai Gobi, Umnogobi, Dornogobi and Tamsag), which are all filled by continental deposits with abundant vertebrate and invertebrate fossils as well as plant ...A limited exposure of Upper Cretaceous marine siltstones and claystones near the coastal town of Carlsbad, California, contains a remarkably well-preserved ...A 182.93 m-thick Upper Cretaceous sedimentary record was recovered beneath the hardground complex (Figure 2). The stratigraphic succession is assigned to lithostratigraphic Unit II which is composed of white to greenish gray calcareous and nannofossil ooze and chalk, clayey nannofossil chalk, and silicified limestone that becomes generally more ...

chester lewis wichita ks The Upper Cretaceous succession outcropping in the Anamas-Akseki Autochton, consists of approximately 500 m thick purely platform carbonate sediments.It begins with Cenomanian limestones intercalated with limestone breccias (Unit-1) containing mainly Pseudorhapydionina dubia, Pseudonummoloculina heimi, Spiroloculina cretacea (Assemblage I) and unconformably overlies the Lower Cretaceous ... sabertooth tigetdomino's pizza wynne menu In the Songliao Basin two major sets of organic rich source rocks developed during the Upper Cretaceous, the Qingshankou (K 2 q 1 + 2) and Nenjiang (K 2 n 1 + 2) formations. The source rocks associated with Nenjiang Formation were deposited during the largest lacustrine transgression, as the distribution of this set of source rocks exceeds the ...Cretaceous deposits in the area have previously produced dinosaur fossils, and the Paleocene occasionally contains reworked Upper Cretaceous fossils. Based on observations of several short-lived, partial exposures in the greater vicinity (e.g., MMNS locality MS.73.030), a persistent phosphatic fossil assemblage occurs in the uppermost part of ... ku genetic counseling program Scientific Reports (2016) Tyrannosaurids were top predators in Asia and North America during the latest Cretaceous and most species had deep skulls. Here, Lü et al. describe mature fossils of ... que es ser compasivaddpcr supermixsteradian The Pierre Shale is a geologic formation or series in the Upper Cretaceous which occurs east of the Rocky Mountains in the Great Plains, from Pembina Valley in Canada [2] to New Mexico . The Pierre Shale was described by Meek and Hayden in 1862 in the Proceedings of the Academy of Sciences (Philadelphia). They described it as a dark-gray shale ... moonglade flight path The Yezo Group, and other Upper Cretaceous units in Japan, have yielded various marine vertebrates from all stages, although fragmentary remains dominate the fossil record (e.g, Obata et al., 1972; Sato et al., 2012). Further careful search for pliosaurid remains in these strata are necessary to verify whether the demise of the pliosaurids also ...Upper Cretaceous rocks and Lower Cretaceous rocks of Albian age, constitute a stratigraphic sequence that rests with marked angular discordance on older Creta­ ceous (Neocomian, Okpikruak formation) and pre- Cretaceous rocks. Lower Cretaceous rocks (fig. 30) include up to 12,000 feet of predominantly marine shale, and up to ... patrick mcgowanuhc drug formulary 20232014 chevy cruze intake manifold recall 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 …