Upper cretaceous

Titanosaurs (or titanosaurians; members of the group Titanosauria) were a diverse group of sauropod dinosaurs, including genera from all seven continents.The titanosaurs were the last surviving group of long-necked sauropods, with taxa still thriving at the time of the extinction event at the end of the Cretaceous.This group includes some of the largest …

Occurrences of the Upper Cretaceous sediments in southwestern Slovakia. The numbers refer to the description in the text. (1) Magura nappe system, (2) Jarmuta Fm., Pieniny Klippen Belt, (3) Vienna Basin, (4) Upper Cretaceous atop of Hronic nappe, (5) Chtelnica Fm., Turonian freshwater limestones, (6) Horné Belice Group, (7) Hubina Fm., (8), Horné Belice Group (9) Upper Cretaceous sediments ...The deposits corresponding to the Upper Cretaceous Neuquén and San Jorge Gulf basins from northern and central Patagonia have provided two of the most complete sequences of terrestrial vertebrate faunas of all Gondwanan landmasses. Among the carnivorous components, the carcharodontosaurid theropods appeared as common elements during the Early ...Taxonomy and paleoecology of lyssacinosan Hexactinellida from the Upper Cretaceous (Coniacian) of Bornholm, Denmark, in comparison with other Postpaleozoic representatives. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft , …The Upper Cretaceous Postalm section in the Northern Calcareous Alps (Austria) exposes pelagic deposits of the northwestern Tethys whose cyclostratigraphy and palaeoenvironments were examined in this study. The section displays rhythmic deposits of Santonian to late Campanian age (Gosau Group). The Santonian/Campanian transition is ...The largest pterosaur discovered in South America and one of the largest flying vertebrates in the world is described. Thanatosdrakon amaru gen. et sp. nov. is a new azhdarchid found in the upper-most levels of the Plottier Formation (upper Coniacian-lower Santonian, Neuquén Basin), Mendoza, Argentina.Two specimens were identified, the holotype (UNCUYO-LD 307) and the paratype, with an ...According to Skourtsis-Coroneou et al. (1995) the Upper Cretaceous deposits, mentioned as "clastic limestones" from the western to eastern part, from the external to internal Ionian zones, consist of: A. In the external (western) parts have a micritic matrix, consist of floatstones, rudstones and rare grainstones and packstones with micritic or biomicritic intercalations.The Malatya Basin is situated on the southern Taurus-Anatolian Platform. The southern part of the basin contains a sedimentary sequence which can be divided into four main units, each separated by an unconformity. From base to top, these are: (1) Permo-Carboniferous; (2) Upper Cretaceous-Lower Paleocene, (3) Middle-Upper Eocene and (4) Upper Miocene.

Cretaceous Dinosaurs in Parks. Cretaceous (145 to 66 Ma) dinosaur fossils in the NPS are geographically more scattered than the Triassic and Jurassic examples. In recent years, Alaska's parks have become significant for tracks, especially at Denali National Park and Preserve, where hadrosaur tracks are abundant.Bryce Canyon National Park (Utah), has a notable record of microfossils from ...The Cretaceous period is the ninth and longest period in the Phanerozoic eon, lasting 80 million years from 145 to 65 million years ago (mya). It followed the Jurassic period, and is the third and last period of the Mesozoic era. After it came the Cainozoic era. [1] The Cretaceous period has just two very long epochs : Upper Cretaceous 100.5 ...Upper Cretaceous subsurface stratigraphy and structure of coastal Georgia and South Carolina is based on the study of 24 wells along two transects, one extending across the seaward-dipping sedimentary basin termed the 'Southeast Georgia Embayment' northeastward to the crest of the Cape Fear Arch, and the other alined east-west, parallel to the basin axis and including the COST GE-l well on the OutShow abstract. PDF | On Jan 1, 1998, J.A. Burnett published Upper Cretaceous | Find, read and cite all the research you need on ResearchGate.The Lower Cretaceous (Albian) Kharita Formation is composed of sandstone interbedded with shales and siltstone. The Upper Cretaceous (Cenomanian) Bahariya Formation consists mainly of sandstone, with thin streaks of shales and limestone (Kandil 2003). The sandstones are the main gas and/or condensate pay zone.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.Pore and pore network evolution of Upper Cretaceous Boquillas (Eagle Ford-equivalent) mudrocks: Results from gold tube pyrolysis experiments AAPG Bulletin. Modeling the effects of microscale fabric complexity on the anisotropy of the Eagle Ford Shale Interpretation ...

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 …The Upper Cretaceous Toyajo Formation is distributed around the Mt. Toyajo in the Aridagawa area, Wakayama, southwestern Japan. The formation is subdivided into three newly defined members, the Nakaibara Siltstone Member, Hasegawa Muddy Sandstone Member, and Buyo Sandstone Member, in ascending order. ...The Yogou Formation of the Upper Cretaceous is a potential source rock in the Termit Basin of Niger, and the TOC content of the upper member is 1.8-9 times that of the lower member. However, the influence of the sedimentary environment evolution on its organic matter heterogeneity is still unclear. In this paper, the evolution of the ...stratigraphy and facies analysis of the upper cretaceous abu roash formation in abu roash area, giza, egypt Dr Hanan S Badawy Great thanks are due to Prof. Dr. Ahmed M. Abu Khadrah, Dean of the Faculty of Science, Cairo University for proposing the present point of research, kind supervision, continuous help, reading critically the manuscript ...stratigraphy and facies analysis of the upper cretaceous abu roash formation in abu roash area, giza, egypt Dr Hanan S Badawy Great thanks are due to Prof. Dr. Ahmed M. Abu Khadrah, Dean of the Faculty of Science, Cairo University for proposing the present point of research, kind supervision, continuous help, reading critically the manuscript ...

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The Upper Cretaceous Qingshankou (K 2 n) and Nenjiang (K 2 q) shale oil from the Changling Sag (CLS) of the Southern Songliao Basin located in NE China was studied to determine shale reservoir properties and evaluate oil potential. Multiple methods, including optical microscope, scanning electron microscope and energy dispersive spectrum analysis (SEM-EDS), nitrogen adsorption/desorption ...The Upper Cretaceous biostratigraphy of the East European Platform (EEP) and adjacent regions has been based on the Western European macropaleontological standard (Olferiev and Alekseev, 2005), since the Turonian-Campanian siliceous deposits of the Moscow and Voronezh regions and the Volga Basin (Ulyanovsk, Volgograd and Saratov Regions) are very poor considering the faunal groups ...The meaning of CRETACEOUS is of, relating to, or being the last period of the Mesozoic era characterized by continued dominance of reptiles, emergent dominance of angiosperms, diversification of mammals, and the extinction of many types of organisms at the close of the period; also : of, relating to, or being the corresponding system of rocks.In this article, we have obtained new paleomagnetic and magnetic anisotropy datasets from the upper Cretaceous to lower Eocene sedimentary rocks in the Cuojiangding area, and combined them with published paleomagnetic data, regional geological reports, biostratigraphic ages and U Pb zircon geochronology to discuss their tectonic implications. 2.the Upper Cretaceous on the North Slope. 5. Conclusions. 1 Late Cretaceous strata along the lower Colville River,. Alaska, record three distinct depositional ...

The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the problematic Rahonavis from Madagascar. Here we report on a new paravian from the Cenomanian-Turonian (Late Cretaceous) of Río Negro province, NW Patagonia, Argentina. The new taxon exhibits a derived bird-like morphology of the forelimbs (e.g., robust ...21 de abr. de 2020 ... The Kem Kem vertebrate assemblage, currently the best documented association just prior to the onset of the Cenomanian-Turonian marine ...Arambourgiania Philadelphias (ARAMBOURG 1959) from the Maastrichtian (Upper Cretaceous) of Ruseifa, Jordan, is one of the largest pterosaurs known and was an animal comparable in size to the North ...The Spinosauridae was a specialised group of large Lower to Upper Cretaceous carnosaurs. The crocodile-like snout of Spinosaurus (Fig. 101d) from Africa suggests a connection with Baryonyx (Fig. 123) from England and possibly Africa, while Acrocanthosaurus (Fig. 101c) from the Lower Cretaceous of North America seems to have been allied to the Allosauridae.Amiot, R. et al. Latitudinal temperature gradient during the Cretaceous Upper Campanian-Middle Maastrichtian: δ18O record of continental vertebrates. Earth Planet. Sci. Lett. 226, 255-272 (2004).The mid-Cretaceous is often regarded as the warmest period in Earth's history, reaching the Cretaceous Thermal Maximum in the Turonian (89.8-93.9 million years ago; Wilson et al., 2002), although increasingly evidence suggests a much more complex picture with cool events throughout the mid to Late Cretaceous (Veizer et al., 2000, Weissert and ...Cretaceous Dinosaurs in Parks. Cretaceous (145 to 66 Ma) dinosaur fossils in the NPS are geographically more scattered than the Triassic and Jurassic examples. In recent years, Alaska’s parks have become significant for tracks, especially at Denali National Park and Preserve, where hadrosaur tracks are abundant.Bryce Canyon …Upper Cretaceous leaf flora from the Blaszyk Moraine (Zamek Formation), King George Island, South Shetland Islands, West Antarctica. Acta Palaeobotanica, 34 (1994), pp. 119-163. Google Scholar. 151. Zhiyan Zhou, Haomin Li. Some Late Cretaceous plants from King George Island, Antarctica.The upper part of Member 1 (214-155 m) displays a general upwards. Summary and conclusions. Based on TOC and Rock-Eval pyrolysis data, oil shales and organic-rich mudstones of the Upper Cretaceous Qingshankou and Nenjiang formations in the Songliao Basin are excellent source-rocks for oil, containing Type I OM.In open-marine accumulations, a peculiarly common mode of occurrence within Upper Cretaceous hemipelagic (marly chalk) facies of southeastern states, simple floatation of a dinosaurian cadaver into deep-water shelfal areas is the only mechanism involved (Figure 3c; Langston, 1960; Schwimmer, 1996). Such a cadaver, dried on its top side and ...The Upper Cretaceous Tremp Formation of the south-central Pyrenees, Spain, records part of the eastern infill of the Cretaceous-Paleogene Tremp-Grauss Basin. This basin is regarded as a foreland basin related to the anticlockwise movement of the Iberian plate beneath the Eurasia plate linked to the rifting of the Gulf of Vizcaya (e.g., Baceta ...

Upper Jurassic–Lower Cretaceous facies transition. Important limestone unit thickness changes characterize all the studied sections and significant variations are recorded, in terms of facies stacking patterns and depositional environments. Two main depositional models define the Upper Jurassic–Lower Cretaceous transition in the studied area.

Sedimentation effectively terminated in the upper cretaceous (Santonian/Campanian) simultaneous with the earliest development of the Red Sea which bounds the eastern side of the Western Desert basin. The Cretaceous succession in the Komombo basin Concession as shown in Fig. 4 generally consists of six formations from …Titanosaurian Sauropod from the Upper Cretaceous of Jiangxi Pr ovince, Southern China, Historical Biology, DOI: 10.1080/08912963.2023.2259413 To link to this article: https://doi.or g/10.1080 ...The fossils were unearthed from the sandstone bed of the Upper Cretaceous Quantou Formation in Shanqian Village, Liufangzi Town, Gongzhuling City, Changchun Area, Jilin Province, China. Dromaeosaurids are small to medium-sized carnivorous dinosaurs, and they occur from the Early Cretaceous to the Late Cretaceous (Turner et al., 2012). Apr 2, 2021 · The origin of modern rainforests can be traced to the aftermath of the bolide impact at the end of the Cretaceous. Carvalho et al. used fossilized pollen and leaves to characterize the changes that took place in northern South American forests at this time (see the Perspective by Jacobs and Currano). They not only found changes in species ... Early or Lower Cretaceous. It begins after the end of the Jurassic, approximately 145 million years ago, and extends until about 113 million years ago. It includes the Berriasian, Valanginian, Hauterivian, Barremian, Aptian and Albian ages. Late or Upper Cretaceous. It begins about 100.5 million years ago and lasts until about 72 million years ago.The origin of modern rainforests can be traced to the aftermath of the bolide impact at the end of the Cretaceous. Carvalho et al. used fossilized pollen and leaves to characterize the changes that took place in northern South American forests at this time (see the Perspective by Jacobs and Currano). They not only found changes in species ...Cretaceous Seismicity in the United Kingdom from 1990 to 2008-02-27. By the Cretaceous the island had sunk much further in relation to the sea level. Before the end of the period, the British end was buried in Upper Cretaceous chalk. This happened because the Pacific Ocean bed swelled up causing the world's seas to rise but also, the process ...Background A dinosaur census recorded during the Hell Creek Project (1999-2009) incorporates multiple lines of evidence from geography, taphohistory, stratigraphy, phylogeny and ontogeny to investigate the relative abundance of large dinosaurs preserved in the Upper Cretaceous Hell Creek Formation of northeastern Montana, USA. Overall, the dinosaur skeletal assemblages in the Hell Creek ...The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone succession in southern and eastern England. The same or similar rock sequences occur across the wider northwest European chalk 'province'. It is characterised by thick deposits of chalk, a soft porous white limestone, deposited in a marine ...

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Upper Cretaceous and Upper Eocene source rock models support the idea of upwelling-induced enhanced primary bioproductivity, consequent oxygen depletion and deposition and preservation of OM along the Levant Margin, as well as on top of the ESM. Source rocks along the margin form a narrow band of ~50 km parallel to the palaeo shelf break.The Williams Fork Formation (Upper Cretaceous) is exposed in northwestern Colorado and is part of the "Mesaverde Group" in this area, which appears to be slightly younger than the type Mesaverde ...Description of new hadrosaurid fossils from the Upper Cretaceous Kakanaut Formation (Chukotka, Russia) and a study on their histology is published by Bapinaev et al. (2023), who interpret the studied fossils as …... Upper Cretaceous (Senonian) formations. Figure 1 Facies map and schematic paleogeographic reconstruction of the Moroccan Atlas region during the Late ...Upper Cretaceous. Subdivision of the Cretaceous system according to the IUGS, as of July 2012. The Late Cretaceous (100.5–66 …Small abelisaurids are also known from the Upper Cretaceous of Europe, including Tarascosaurus from the Campanian of France (Le Loeuff and Buffetaut, 1991), Betasuchus from the Maastrichtian of the Netherlands (Seeley, 1883; Le Loeuff and Buffetaut, 1991; Tortosa et al., 2014), and an unnamed species from the lower Maastrichtian of France ...Cretaceous Period in geologic time. Campanian Stage, fifth of six main divisions (in ascending order) in the Upper Cretaceous Series, representing rocks deposited worldwide during the Campanian Age, which occurred 83.6 million to 72.1 million years ago during the Cretaceous Period. Rocks of the Campanian Stage overlie those of the Santonian ... Upper Cretaceous oceanic red beds in southern Tibet: A major change from anoxic to oxic, deep-sea environments. Cretac Res, 26: 21-32. Article Google Scholar Wang C, Hu X, Huang Y, Wagreich M, Scott R, Hay W. 2011. Cretaceous oceanic red beds as possible consequence of oceanic anoxic events. Sediment Geol, 235: 27-37The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the Upper Cretaceous limestone succession in southern and eastern England. The same or similar rock sequences occur across the wider northwest European chalk ' province '.A new small-bodied troodontid (LH PV39) recovered from the Upper Cretaceous Wulansuhai Formation, Suhongtu, Inner Mongolia, China, is described. The new specimen preserves six postaxial cervical vertebrae, five completely fused sacral and four posterior caudal vertebrae in addition to two manual unguals. The completely fused … ….

CONTENTS. Preface. Sequence Stratigraphy of the Upper Cretaceous (Cenomanian) Woodbine Group: Chronostratigraphic Integration of the East Texas Basin and East Texas Field, by Tucker F. Hentz and Florence Bonnaffé. Depositional Systems and Facies Variability in Highstand Fluvial- Dominated Deltaic and Lowstand Valley-Fill Systems in the Lower ...The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series.It spans the time between 93.9 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago). The Turonian is preceded by the Cenomanian Stage and underlies the Coniacian Stage.. At the beginning of the Turonian an oceanic anoxic …First paleosol-derived climate data from continental Africa for the mid/Late Cretaceous. • Multi-proxy analysis using morphology, bulk geochemistry and δ 18 O of carbonates.. Lower-Upper Cretaceous paleosols record temperate conditions in Africa.The Upper Cretaceous to Upper Palaeocene rocks of the Zimam Formation along the southwestern escarpment of the Hun Graben of NW Libya have been stratigraphically investigated from two ...Of the 10 Upper Cretaceous tropical dinoflagellates cysts references mentioned before (Table 2), 3 are from northern South America, and 7 are from the central Atlantic region. The tropical database compiled here contains 262 species, 164 are in the UCret localities from Venezuela, and 73 are reported in both regions (Appendix A).The previous oldest known fossil snakes date from ~100 million year old sediments (Upper Cretaceous) and are both morphologically and phylogenetically diverse, indicating that snakes underwent a ...Most hydrocarbon production from low-permeability Upper Cretaceous and lower Tertiary reservoirs in the Greater Green River basin of Wyoming, Colorado, and Utah is gas. The most likely sources of the gas are the interbedded coal beds and other carbonaceous lithologies. A source-rock evaluation of these rocks indicates predominantly humic, type ...The fossils were unearthed from the sandstone bed of the Upper Cretaceous Quantou Formation in Shanqian Village, Liufangzi Town, Gongzhuling City, Changchun Area, Jilin Province, China. Dromaeosaurids are small to medium-sized carnivorous dinosaurs, and they occur from the Early Cretaceous to the Late Cretaceous ( Turner et al., 2012 ).In this paper, we demonstrate a down-paleoslope shift in detrital zircon provenance signatures correlated with shallow-marine lithofacies patterns from the Upper Cretaceous La Anita Formation and underlying continental slope lithofacies of the Alta Vista Formation (Magallanes-Austral Basin, southern Patagonia). Upper cretaceous, The Lance (Creek) Formation is a division of Late Cretaceous (dating to about 69 – 66 Ma) rocks in the western United States. Named after Lance Creek, Wyoming, the microvertebrate fossils and dinosaurs represent important components of the latest Mesozoic vertebrate faunas. The Lance Formation is Late Maastrichtian in age ( Lancian land ..., The Upper Cretaceous, tropical dinoflagellate cysts database includes more presumably photo-autotrophic (170) species than heterotrophic (92). The photo-autotrophic flora's diversity and abundance suggest that they were the dominant primary producers in the tropics during the Upper Cretaceous., Here we provide morphological description of new hadrosaurid specimens (vertebrae, femora) and results of the histological analysis of hadrosaurid femora, proximal fragments of a humerus and a scapula from the Upper Cretaceous high-latitude (palaeolatitude estimate of 75°N) Kakanaut locality (Chukotka, Russia)., The specimen comes from the upper part of the Candeleros Formation, Upper Cretaceous (Cenomanian, circa 98 Ma, Garrido, 2010) (Fig. 1). 4. Description4.1. Caudal vertebrae. The preserved caudal sequence is composed of 24 vertebrae lying on their left side, corresponding to approximately the anterior half of the tail (Fig. 2). The collected ..., Scarce basin remnants of Cretaceous synorogenic sediments exposed in the Medvednica, Ivanščica, Žumberak Mts. and Samobor Hills of northern Croatia record the early orogenic history of the NW Dinarides. The provenance of sandstones from five clastic formations (Oštrc, Bistra, Kravljak, Vivodina and Glog) which cover a time span from Early to late Late Cretaceous was studied by combining ..., A new genus and species of tetrablemmid spider, Electroblemma bifida n. gen. et sp., is described, from two adult males found in Upper Cretaceous (Cenomanian) amber of Myanmar. The genus is distinguished by its enormous dorsal carapace projection and highly modified chelicerae., Upper Cretaceous paleoenvironmental changes and petrophysical responses in lacustrine record (Songliao Basin, NE China) and marine sedimentary deposit (Goban …, Dec 13, 2017 · The Upper Cretaceous-Lower Paleogene succession at Gabal Qreiya area that covers six rock units, Quseir, Duwi, Dakhla, Tarawan, Esna, and Thebes formations, is reviewed through a high-resolution sequence stratigraphic analysis. Six third-order depositional sequences and their associated surfaces and systems tracts are recognized based on stratigraphic, sedimentological, and high-resolution ... , The pre-rift sediments of the Gulf of Suez Basin were deposited in continental margin sags. The first subsidence cycle deposited clastic Nubia Formation during Carboniferous-Lower Cretaceous period, while the second subsidence cycle commenced from Upper Cretaceous and deposited mixed siliciclastic-carbonate sediments (Atia et al. 2015)., Tlatolophus galorum, gen. et sp. nov., a parasaurolophini dinosaur from the upper Campanian of the Cerro del Pueblo Formation, ... Before the present research, this subfamily was represented by 22 genera and 28 species recovered from Upper Cretaceous deposits of North America, Asia, Africa, and Europe (Table 1) ..., The Saratoga Chalk of Arkansas yields a rich ammonite fauna of 17 species, referred to the Nostoceras (N.) hyatti zone. Recognition that the northwest European N. (N.) pozaryskii Blaszkiewicz, 1980, is a synonym of N. (N.) hyatti Stephenson, 1941, and N. (N.) helicinum (Shumard, 1861) dates the zone as latest Campanian on the basis of co-occurrence with Belemnitella langei Jeletzky, 1948, in ..., Upper Cretaceous of California 235 Within California, but outside of the Chico Formation, the strat~graphic disv~ bution of Baculites capensis is poorly understood. As discussed earlier, the ranges of H. venustum and Baculites capensis overlap slightly on Mill Creek and Big Chico Creek. Collections from the Redding area, specifically UCLA ..., In the Vitulano area, Upper Cretaceous bauxite bodies fill small depressions and karst cavities within Cretaceous shallow-water limestones. These bauxites were studied to understand the processes that led to their formation. Geochemical, mineralogical, and petrographic analyses were carried out on the bauxite samples, together with image analysis providing geometric parameters. The texture of ..., According to the most popular theory, the Brachiosaurus dinosaur became extinct during the end of the Cretaceous period due to the impact of a meteor on Earth’s surface., The Late Cretaceous experienced significant cooling, yet a lack of low-latitude records mean the regional extent of this cooling is poorly constrained. Linnert et al. present a TEX86sea surface ..., Planktonic foraminifera are one of the most stratigraphically important groups of organisms for the Cretaceous system. However, standard foraminiferal zonations based mostly on species from the Tethyan bioprovince are hardly applicable in temperate regions where warm-water taxa are scarce or lacking. We propose a foraminiferal zonation based on foraminiferal events recognized in the northern ..., Upper Cretaceous stages, Western In terior formations with fossil zones 1-10, and important molluscan species (modifi ed from Stephenson and Reeside, 1938, p.1636- 38)., In the early Cretaceous, many of the southern continents were still joined together as part of the southern landmass called Gondwana., Figure 2.6 Regional thickness maps [isochore, in feet]: for [A] entire Upper Cretaceous section, [B] Maastrichtian to Turonian, and [C] Turonian to base of Upper Cretaceous ..31 Figure 2.7 Structure maps, in feet, for [A] top of Upper Cretaceous [Late Maastrichtian],, During the last three decades, several basal ceratopsians have been unearthed in Upper Jurassic and Lower Cretaceous strata in Asia and North America, including Yinlong downsi 1, Chaoyangsaurus ..., For the Upper Cretaceous they are the Cenomanian, Turonian, Coniacian, Santonian, Campanian, and Maastrichtian. The longest is the Aptian, lasting about 12 million years; the Santonian is the shortest at just under 3 million years., The upper Cretaceous Naparima Hill Formation, a primary source rock for conventional oil and gas reservoirs in Southern and Columbus basins, Trinidad is now considered an unconventional reservoir ..., The Dinosaur Park Formation is the uppermost member of the Belly River Group (also known as the Judith River Group), a major geologic unit in southern Alberta.It was deposited during the Campanian stage of the Late Cretaceous, between about 76.5 and 74.4 million years ago. It was deposited in alluvial and coastal plain environments, and it is bounded …, Upper Jurassic (Oxfordian) Smackover Formation is a source of hydro-carbon. In eastern Texas and western Louisiana to the south where the Eagle Ford is thin to absent, hydrocarbons in the Austin Chalk are derived from sources in older Upper Cretaceous rocks (Hood and others, 2002). Hydrocarbons migrated into conventional reservoirs in the Austin , 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 ..., Of the 10 Upper Cretaceous tropical dinoflagellates cysts references mentioned before (Table 2), 3 are from northern South America, and 7 are from the central Atlantic region. The tropical database compiled here contains 262 species, 164 are in the UCret localities from Venezuela, and 73 are reported in both regions (Appendix A)., NMMNH locality 3033, Allison Member of the Menefee Formation, Upper Cretaceous (early Campanian), Sandoval County, New Mexico, USA (Figs. 2, 3). The type material of Menefeeceratops sealeyi gen. et sp. nov. is an associated incomplete skeleton of a single individual (NMMNH P-25052) collected over an area of about 13 m 2 (Williamson 1997) (Fig. 3)., The basin fill thins toward the basin margins (Fig. 1) and is dominated by Cretaceous terrigenous successions. The Upper Cretaceous strata composed of the Qingshankou (K 2 qn), Yaojia (K 2 y), Nenjiang (K 2 n), Sifangtai (K 2 s) and Mingshui (K 2 m) formations (Fig. 1) comprise excellent source rocks in the Qingshankou (K 2 qn) and Nenjiang (K ..., Description of new hadrosaurid fossils from the Upper Cretaceous Kakanaut Formation (Chukotka, Russia) and a study on their histology is published by Bapinaev et al. (2023), who interpret the studied fossils as …, The Upper Cretaceous-Paleogene strata are developed in the basin, fed predominantly with alluvial and fluvial sediments with lacustrine deposits like siltstones and mudstones that are the major petroleum source rocks in all these basins (Shinn et al., 2010; Xu and Gao, 2015a; Xu et al., 2018)., Thorough sedimentological and palaeontological analyses of four expanded Upper Cretaceous sections in northern Tademait had allowed us to address and reconsider the stratigraphical framework of the so-called 'Continental Intercalary' and 'Hamada series' in this remote Saharan area. These four sections (i.e., Meguidene, ..., The Upper Cretaceous foraminifera of Kemar-1 in the Bornu Basin are dominated by arenaceous foraminifera, including Ammobaculites, Haplophragmoides, etc (Adegoke, 2012). Large numbers of arenaceous foraminifera were found in Upper Cretaceous outcrop of the Benue Trough, including Glomospirella , Miliammina , Haplophragmoides , Ammoastuta ..., The scientific paper describing the find—titled "Ancient diversity and turnover of cunninghamioid conifers (Cupressaceae): two new genera from the Upper Cretaceous of Hokkaido, Japan"—has been ...