Cretaceous Period - Climate, Extinction, Dinosaurs: In general, the climate of the Cretaceous Period was much warmer than at present, perhaps the warmest on a worldwide basis than at any other time during the Phanerozoic Eon. The climate was also more equable in that the temperature difference between the poles and the Equator was about …The Lameta Formation (Upper Cretaceous) is exposed in parts of central and western India as detached outcrops and covers an area of nearly 5000 km2. It generally rests on Precambrian and "Gondwana" rocks and is invariably capped by Deccan Trap volcanic flows. In the Nand and Dongargaon areas of the Chandrapur and Nagpur districts of Maharashtra ...To further constrain the India-Asia collisional process, a combined paleomagnetic and geochronologic study has been carried out on the Upper Cretaceous Jingzhushan Formation redbeds and the Lower ...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.A large theropod ilium was recently collected from the Upper Cretaceous Honglishan Formation in the Sangequan area of the northern Junggar Basin, Xinjiang, China, which represents the first ...The Upper Cretaceous to Oligocene strata of the Cuesta de Huaco anticline in the Argentine Precordillera record sedimentation, regional deformation, and climate patterns prior to the highly ...The Upper Cretaceous-Eocene succession in the study area begins with the Bahi Formation, the lower part of which is comparable to the pre-Upper Cretaceous Nubian facies in having been deposited mainly under a non-marine regressive phase, as indicated by the absence of dinocysts and microforaminiferal test linings. By contrast, the upper part ...The eastern Tunisian margin is considered an Upper Cretaceous and Eocene petroleum province. It has been affected by Mesozoic rifting and Cenozoic compression. Several oil and gas shows and accumulations have been discovered in Upper Cretaceous carbonates within structural anticlinal closures. These anticlinal highs represent inherited rift platform horsts with hiatuses, unconformities and ...Zangjiazhuang, Zhucheng City, Shandong Province (Fig. 1); Upper Cretaceous Wangshi Group (Hu et al., 2001).Within the fluvial sediments of the Wangshi Group, the abundant dinosaur material preserved in the Zhucheng quarries lies near the transition between the Xingezhuang Formation and the overlying Hongtuya Formation (Li et al., 2009).Basalt within the upper part of the Hongtuya Formation has ...Feb 9, 2011 · 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 ... Magnetostratigraphy provides a continuous and precise chronological framework for constraining changes in the SAR in the Longmenshan foreland basin. …Our study builds on an earlier examination of the landscape abundance of megaherbivorous dinosaurs of the Upper Jurassic Morrison Formation of the western United States (Farlow et al., 2010), but now considers the abundance of Morrison large theropods, and extends consideration to the tyrannosaurids of the Upper Cretaceous Dinosaur Park ...Show abstract. PDF | On Jan 1, 1998, J.A. Burnett published Upper Cretaceous | Find, read and cite all the research you need on ResearchGate.They represent the easternmost occurrence of Upper Cretaceous pelagic red beds of the Tethys. Late Cretaceous oxic oceanic conditions extended into the southern Tethys because the formation was deposited in southern palaeolatitudes. Therefore, the change from a dysoxic/anoxic to an oxic bottom ocean environment during the Late Cretaceous was at ...Recently, a construction project in the Upper Cretaceous red beds of the Ganzhou Basin, Jiangxi Province, China revealed a fossilized clutch of spheroolithid eggs. In this contribution, we briefly describe two of these eggs and their embryonic contents, accessioned at the Yingliang Stone Natural History Museum (YLSNHM) in Fujian Province, China.Germany is located at the centre of the map. Germany is located between the geologically very old ( Precambrian) East European Craton ( Baltica) to the north and north-east (that further north is exposed as the Baltic Shield ), and the geologically young (Cenozoic) Alpine - Carpathian Orogen to the south. The corresponding crustal provinces of ...Upper Cretaceous Stratigraphy and Depositional Environments of Western Kansas by Donald E. Hattin, Indiana University, and Charles T. Siemers, Cities Service Company Assisted by Gary F. Stewart, Oklahoma State University. Originally published in 1978 as Kansas Geological Survey Guidebook 3. The book was reprinted in 1987 with some modifications.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).Zonal and marker species of radiolarians from Upper Cretaceous sequences of eastern Europe: 1Spongosaturninus hueyi Pessagno; 2Neosciadiacapsa agarkovi Vishnevskaya; 3Rhombastrum russiense Vishnevskaya, Rostov region, right coast of the Kalitva River, Efremovo-Stepanovka, upper Campanian; 4 N. diabloensis Pessagno ( 1, 2, and 4 from Greater ...The Cretaceous period was the last and longest segment of the Mesozoic era. It lasted approximately 79 million years, from the minor extinction event that closed the Jurassic period about 145 ...Rudist bivalve, Maurens Formation, Upper Cretaceous, southwestern France. Rudists are a group of extinct box-, tube- or ring-shaped marine heterodont bivalves belonging to the order Hippuritida that arose during the Late Jurassic and became so diverse during the Cretaceous that they were major reef-building organisms in the Tethys Ocean, until their …The Upper Cretaceous Wangshi Group of China has also produced leptoceratopsids, specifically Zhuchengceratops inexpectus (Xu et al. 2010), although the only other small ornithischian recovered ...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 ...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 ...Positive δ 13 C carb and δ 13 C org excursions occur in the mid-Cretaceous black shales (Wang et al., 2001), while negative δ 13 C carb and δ 13 C org excursions take place in the Upper Cretaceous red-beds, coincident with lower fractions of biogenic barite (Wang et al., 2005, Zou et al., 2005). These differences point to lower primary ...The Upper Cretaceous/Paleogene marine sedimentary rocks of the Moroccan High Atlas host phosphate-rich sediments bracketed by calcareous nannofossil Zones (NP4-NP9) of late Danian to Thanetian age.In this work, an assemblage of fossil woods briefly mentioned by Alvarez et al. (2019, 2020) from the Bajo Barreal Formation (Upper Cretaceous of the Golfo San Jorge Basin, in central Patagonia, Argentina) is described in detail, being the second study of woods from this stratigraphic unit, after that of Pujana et al. (2007).May 9, 2022 · Recently, a construction project in the Upper Cretaceous red beds of the Ganzhou Basin, Jiangxi Province, China revealed a fossilized clutch of spheroolithid eggs. In this contribution, we briefly describe two of these eggs and their embryonic contents, accessioned at the Yingliang Stone Natural History Museum (YLSNHM) in Fujian Province, China. The Upper Jurassic-Lower Cretaceous strata, known as the Shamuluo or Rina Formation, overlying the subduction-accretionary complex, is a terrigenous clastic-carbonate rocks over 800 m thick, and contains Spongiomorpha sp., corals, sponges, ammonites, and foraminifera and plant fossils, and the gravels which consists of basic-ultrabasic rocks ...Upper Cretaceous, Paleocene, Eocene, and Oligocene deposits are characterized by sharp facies and thickness changes as a result of orogenic movements in the Zagros area. Following deposition of ...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 ...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 ...Upper Cretaceous marine clastic strata (~ 650 ft), which are surmounted by marine carbonate beds (~ 1,150 ft) of latest Cretaceous age. The marine clastic facies thickens northeastward along the coastline to include the entire Upper Cretaceous and extends over Cape Fear Arch, where it is 1,300 ft thick. The Upper Cretaceous marineNew shell material of a trionychid turtle from the Upper Cretaceous (upper Campanian) Fossil Forest Member of the Fruitland Formation of northwestern New Mexico represents a new species, Gilmoremys gettyspherensis.The material consists of right costals I-III, V, VI, and VIII, left costals V, VII, and VIII, the left half of the entoplastron, the right hypo- and xiphiplastron, and the left hyo ...A new ankylosaurid dinosaur, Tarchia tumanovae sp. nov., has been recovered from the Upper Cretaceous Nemegt Formation of Mongolia. It includes a well-preserved skull, dorsal, sacral, caudal ...The Cenomanian is, in the ICS ' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. [4] An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age.3 de mai. de 2022 ... Fragmentary therizinosaur specimens have been reported from the Lower and Upper Cretaceous deposits in Japan. One of these specimens, from the ...Geography. Approximately the upper Cretaceous occupies in north central Kansas an area of twenty five thousand square miles-nearly one third of the total area of the state. The main portion of this area lies between the 38th and 40th parallels north latitude and the 97th and 100th degrees 30 minutes west longitude.@article{osti_6377873, title = {Upper Cretaceous and lower Eocene conglomerates of Western Transverse Ranges: evidence for tectonic rotation}, author = {Reed, W E and Krause, R G.F.}, abstractNote = {Stratigraphic and paleomagnetic studies have suggested that the western Transverse Ranges (WTR) microplate is allochthonous, and may have experienced translational and rotational motions.The Late Cretaceous (100.5-66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series.The Cretaceous is named after creta, the Latin word for the white limestone known as chalk.The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period.Positive δ 13 C carb and δ 13 C org excursions occur in the mid-Cretaceous black shales (Wang et al., 2001), while negative δ 13 C carb and δ 13 C org excursions take place in the Upper Cretaceous red-beds, coincident with lower fractions of biogenic barite (Wang et al., 2005, Zou et al., 2005). These differences point to lower primary ...The Cretaceous is defined as the period between 145.5 and 65.5 million years ago,* the last period of the Mesozoic Era, following the Jurassic and ending with the extinction of the dinosaurs (except birds). By the beginning of the Cretaceous, the supercontinent Pangea was already rifting apart, and by the mid-Cretaceous, it had split into ...The Upper Cretaceous, especially the latest Campanian and Maastrichtian period denoted for the first time that marine deposits were continuously and widely distributed across the whole GSB and its proximate regions (Snyder et al. 1985) coupled with carbonate accumulation. Thereby, conducting a paleoenvironmental study using Upper Cretaceous ...The SK-1 boreholes are situated on the Qijia-Gulong Depression, which was one of the major depositional centers in the basin. During the Upper Cretaceous, two major sedimentary settings of organic rich source rocks developed in the basin associated with the K 2 q 1 + 2 members of the Qingshankou Formation and. Abundance and types of organic ...Sequence analysis of the upper Cretaceous Two Medicine and Judith River formations, Montana: nonmarine response to the Claggett and Bearpaw marine cycles. Journal of Sedimentary Research 68 : 615 - 631 .Feb 9, 2011 · 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 ... Upper Cretaceous-Palaeocene pelagic red beds in the North Atlantic basins (Fig. 1, Locality 1) (Jansa et al., 1979) are varicoloured, locally zeolitic, non-calcareous claystone.They form the Plantagenet Formation, which is a relatively thin, but widespread unit that overlies black claystone of the mid-Cretaceous Hatteras Formation (Jansa et al., 1979).The Austin Group (Coniacian-Santonian) is a sequence of interstratified chalk and marl deposited during a sea-level highstand as a transgressive unit. Austin Chalk deposition occurred on a southeastward-dipping carbonate ramp that exhibits distinctive onshore and offshore chalk lithofacies. Discrete intervals within offshore Austin lithofacies ...The Lower Cretaceous is the first geological epoch in the Cretaceous. It began 145 million years ago, and ended 100.5 million years ago. ... In the Lower Cretaceous, the sea level was much lower than in the Upper Cretaceous. In the Wealden, Southern England was a huge tropical river delta; in the Greensand the same areas were just offshore.A sturgeon (Actinopterygii, Acipenseriformes) from the Upper Cretaceous of Africa. A single dorsal bony scute from the uppermost Cretaceous (Maastrichtian) marine phosphatites of central Morocco is identified as an acipenserid fish (sturgeon). The new specimen represents the first occurrence of an acipenseriform fish on the continent of Africa.Home · Scientific Publications · American Museum Novitates · Some Upper Cretaceous ammonites from Angola. American Museum novitates ; no. 1182 ...Upper Cretaceous and Lower Cretaceous aquifers are transboundary aquifers which extend outside the political east boundary of Egypt to Negev, in Palestine (Issar et al. 1972; Nour 1998). The Upper Cretaceous limestone and the Lower Cretaceous sandstone aquifers extend in central and northern Sinai and are the main source of water in this area.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.The Naparima Hill Formation is an organic rich, oil-prone sedimentary sequence located in the upper section of the Cretaceous source rock of Trinidad (Rodrigues, 1988) (Fig. 2a).Geographical and geological situation of the Oliete sub-basin (Teruel, Spain). a Mesozoic basins of the Iberian Peninsula. The square indicates the location of the …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 standard international sub-division of the Cretaceous comprises of an Upper and Lower Cretaceous, with the boundary being at the top of the Albian. However, in the Middle East a three-fold Cretaceous sub-division has traditionally been used (Christian, 1997), with boundaries at the top of the Aptian and at the top of the Turonian ...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.Einiosaurus is a genus of herbivorous centrosaurine ceratopsian dinosaur from the Upper Cretaceous (Campanian stage) of northwestern Montana.The name means 'bison lizard', in a combination of Blackfeet Indian eini and Latinized Ancient Greek sauros; the specific name (procurvicornis) means 'with a forward-curving horn' in Latin. Einiosaurus is medium …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 …Nishida M, Nishida H (1985) Petrified woods from the Upper Cretaceous of the Quirquina Island. In Nishida M (ed) A Report of the Botanical Survey to Bolivia and Southern Chile by a Grant-in-Aid for Overseas Scientific Survey, 1983. Faculty of Science, Chiba University. Hasedate Printing Co., Chiba, Japan., pp. 27–36. Google ScholarPDF | One hundred permineralized cones, 1.0-1.2 mm x 1.5-2.0 mm, some attached to branching systems, have been examined from the Upper Cretaceous... | Find, read and cite all the research you need ...Gender: Male. Location: Texas. Awards: Posted May 18, 2011. Well I met the now famous BFG out at one of her secret spots at the North Sulphur River. This spot has a history of producing some Indian Artifacts as well as a variety of Cretaceous marine material, as well as some Pleistocene material thrown in. After four hours of hunting the spot ...Jun 6, 2022 · 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 ... Lithology and stratigraphy of the beds in the Upper Cretaceous (Upper Turonian- flint occurrences in South Limburg (the Netherlands) and Santonian) of Haute Normandie, France. Sedimentology, the neighbouring Belgium and German borderland as well 21, 1-42. as the exploitation of these flints in prehistoric times.A new articulated postcranial specimen of an indeterminate ankylosaurid dinosaur from the Upper Cretaceous (middle-upper Campanian) Baruungoyot Formation from Hermiin Tsav, southern Gobi Desert ...Apr 21, 2020 · The ichnofossil assemblage from the Upper Cretaceous Kem Kem beds contributes evidence for a transition from predominantly terrestrial to marine deposition. Body fossil and ichnofossil records ... They are called the Glen Rose Formation and Edwards Group. The rocks east of the Balcones Escarpment are Upper Cretaceous rocks, ranging in age from 70 million to 100 million years. The Upper Cretaceous in the Austin area is composed of the Georgetown, Del Rio, Buda, and Eagle Ford Formations, as well as the younger Austin Chalk and …The Upper Cretaceous strata of western Europe and WIS largely represent the sedimentation in epicontinental seas, unlike the areas such as northwestern Pacific (i.e., Japan) or southern high latitudes (home for Weddelian Province), which were directly facing the deeper ocean.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 ...The alvarezsaurids are best known from the Upper Cretaceous of the Gobi Desert in Mongolia and northern China, although they are among the rarest theropod dinosaurs there. Even the fragmentary specimen PIN 5838/1, the holotype of Ondogurvel alifanovi described herein is among the most complete alvarezsaurid specimens known from the Gobi Desert.Bisticeratops. Bisticeratops (meaning " Bisti/De-Na-Zin Wilderness horned face") is a genus of chasmosaurine ceratopsian from outcrops of the Campanian age Kirtland Formation found in the Bisti/De-Na-Zin Wilderness in northwestern New Mexico, United States. The type and only species is B. froeseorum, known from a nearly complete skull.The Upper Jurassic-Lower Cretaceous strata, known as the Shamuluo or Rina Formation, overlying the subduction-accretionary complex, is a terrigenous clastic-carbonate rocks over 800 m thick, and contains Spongiomorpha sp., corals, sponges, ammonites, and foraminifera and plant fossils, and the gravels which consists of basic-ultrabasic rocks ...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, ...This upper Cretaceous source provides good oil source rocks in most parts of The Western Desert and moderate-quality gas source rocks in the Umbaraka area. Significant amounts of oil believed to have been generated from this source, are located in the Abu Gharadig and Gindi basins (Schlumberger 1995). Typical oil source rocks are present in non ...These dromaeosaurid postcranial remains have been found mainly in Upper Cretaceous strata of southern France (Le Loeuff et al. 1992; Le Loeuff and Buffetaut 1998; Allain and Taquet 2000;Chanthasit ...The fossil record for neoceratopsian (horned) dinosaurs in the Lower Cretaceous of North America primarily comprises isolated teeth and postcrania of limited taxonomic resolution, hampering previous efforts to reconstruct the early evolution of this group in North America. An associated cranium and lower jaw from the Cloverly Formation (?middle-late Albian, between 104 and 109 million years ...Upper Cretaceous age of the sediments. Black shales are replaced by a pile of alternating reddish-brown, green, and gray-green noncalcareous clays (Cores 55-57); their thickness is about 80 meters. These deposits are characterized by scarce agglutinated foraminifers of the Upper Cretaceous—Plectina conversa, Recurvoides gerochi, Glomospira ...Legend: 1, pre-Upper Cretaceous-Mesozoic; 2, Upper Cretaceous; 3, Arenisca de Arén Fm., 4, Tremp Fm., 5, Lower Eocene; 6, Upper Palaeogene; 7, recent fluvial valleys. The third locality, Julı́, near Isona (Lleida), is a dark marl with complete shells of Melanopsis near the base of the `Xulı́' beds of Liebau (1973) , lying above La Posa ...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 ...The Cretaceous Maha Sarakham Formation in this area consists of evaporite units (Lower Salt and Middle/Upper Salt) interbedded with clastic sediment. Potash minerals in the upper part of the Lower Salt Unit are associated with an underlying thick bed of rock salt. The δ 11 B values of halite (21.46 ‰–32.62‰) indicated a marine origin ...Winton Formation. / -22.3; 143.1. / -51.8; 134.1. The Winton Formation is a Cretaceous geological formation in central-western Queensland, Australia. It is late Albian to early Turonian in age. [2] The formation blankets large areas of central-western Queensland. It consists of sedimentary rocks such as sandstone, siltstone and claystone.Sea level was higher during most of the Cretaceous than at any other time in Earth history, and , To date, the most complete and largely articulated specimen is the, Pore and pore network evolution of Upper Cretaceous Boquillas (Eagle Ford-equi, The Upper Cretaceous (middle-late Campanian) Wahweap F, The Upper Cretaceous/Paleogene marine sedimentary rock, The few Cretaceous localities are widespread, with the two Lower Creta, The Upper Cretaceous Nenjiang lacustrine shale (K 2 n) is one of th, The regional Cretaceous structural and isopach/lithofaci, Tandon (2000) worked extensively on the sedimentology of , The Late Cretaceous (100.5-66 Ma) is the younger of two epoc, Planktonic foraminifera are one of the most stratigraphically impo, The Upper Cretaceous formations at the 12 study localitie, English: Map of North America with the Western Interior Seaway duri, Udanoceratops belonged to the Ceratopsia (the name i, This paper reports the first discovery of large-bodie, Trinity Group stratigraphic column in Texas. The Trinity Group is a g, Aug 1, 2022 · The Upper Cretaceous foraminifera of Kemar, The landscape at El Anfiteatro area comprises a natural .