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Journal articles on the topic 'Coniacian-Santonian'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

Hildebrand-Habel, Tania, and Helmut Willems. "New calcareous dinoflagellates (Calciodinelloideae) from the Middle Coniacian to Upper Santonian chalks of Lägerdorf (northern Germany)." Journal of Micropalaeontology 23, no. 2 (2004): 181–90. http://dx.doi.org/10.1144/jm.23.2.181.

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Abstract. Three new calcareous dinoflagellate species from the Middle Coniacian to Upper Santonian chalks of Lägerdorf (northern Germany) are formally described: Calcicarpinum macrogranulum n. sp., Pirumella fragilis n. sp. and Ruegenia quinqueangulata n. sp. The species show differing vertical distribution patterns which might result from local sea-level changes: P. fragilis and R. quinqueangulata are restricted to the possibly transgressive upper Mid-Coniacian to Lower Santonian interval and C. macrogranulum occurs consistently only in the probably regressive lower Mid-Coniacian and Middle t

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2

Ismail, Ahmed Aly. "A New Epistemological Insight of the Coniacian-Santonian Oceanic Anoxic Event (OAE3)." American Journal of BioScience 12, no. 1 (2024): 22–34. http://dx.doi.org/10.11648/j.ajbio.20241201.14.

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Eighteen planktic and eleven benthic foraminiferal species were recorded from the dark grey to black shale facies of the Matulla Formation in Abu Zeneima area, West-Central Sinai, Egypt. The faunal assemblage is dominated by cosmopolitan whiteinellids, marginotruncanids, Dicarinellids, Contusotruncanids and Heterohelicids. The planktic species with high taxonomic diversity were used to zone the Coniacian and Santonian stages, as well as define the Coniacian/ Santonian boundary, while benthic foraminifera is of minor contribution in age assignment. The stratigraphic analysis of the relations an

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3

Jimenez, Monica, Simon P. Holford, Rosalind C. King, and Mark A. Bunch. "Controls on gravity-driven normal fault geometry and growth in stacked deltaic settings: a case study from the Ceduna Sub-basin." APPEA Journal 61, no. 2 (2021): 632. http://dx.doi.org/10.1071/aj20073.

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Kinematics of gravity-driven normal faults exerts a critical control on petroleum systems in deltaic settings but to date has not been extensively examined. The Ceduna Sub-basin (CSB) is a passive margin basin containing the White Pointer (Albian-Cenomanian) and Hammerhead (Campanian-Maastrichtian) delta systems that detach on shale layers of Albian-Cenomanian and Turonian-Coniacian ages, respectively. Here we present evidence for spatially variable fault growth styles based on interpretation of the Ceduna 3D seismic survey and fault kinematic analyses using displacement–distance, displacement

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4

Kennedy, W. J., and W. K. Christensen. "Coniacian and Santonian ammonites from Bornholm, Denmark." Bulletin of the Geological Society of Denmark 38 (February 19, 1991): 203–26. http://dx.doi.org/10.37570/bgsd-1990-38-19.

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The ammonite faunas from the Amager Limestone and Bavnodde Greensand Formations of the island of Bornholm, Denmark are described. The Amager Limestone at its type locality has yielded five species, including the age diagnostic Scaphites (Scaphites) kieslingswaldensis kieslingswaldensis · Langenhan & Grundey, 1891 and Peroniceras tridorsatum (Schliiter, 1867). The Bavnodde Greensand has yielded seven species, including Scaphites (Scaphites) kieslingswaldensis fischer Riede!, 1931, which firs! appears in the Lower Santonian elsewhere in Europe. The age of the two formations is discussed. The

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Tröger, Karl-Armin, and Walter Kegel Christensen. "Upper Cretaceous (Cenomanian-Santonian) inoceramid bivalve faunas from the island of Bornholm, Denmark. With a review of the Cenomanian-Santonian lithostratigraphic formations and locality details." Danmarks Geologiske Undersøgelse Serie A 28 (June 30, 1991): 1–47. http://dx.doi.org/10.34194/seriea.v28.7048.

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The inoceramid bivalve faunas from the Arnager Greensand, Arnager Limestone, and Bavnodde Greensand Formations of the island of Bornholm, Denmark are described. The fauna from the basal part of the Arnager Greensand s. str. is from the Lower Middle Cenomanian and includes Inoceramus crippsi Mantell, /. crippsi hoppenstedtensis Trager, and I. schoendorfi Heinz. The Arnager Limestone at its type locality immediately west of Arnager yielded a diverse fauna, including /. waltersdorfensis cf. hannovrensis Heinz, /. lusatiae Andert, I. cf. rotundatus Fiege, /. striatoconcentricus Gumbel, I. (Herocer

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6

Nachev, Ivan, and Ekaterina Dimitrova. "Upper Cretaceous stratigraphy of the Eastern Sredna Gora Zone." Geologica Balcanica 25, no. 3-4 (1995): 3–26. http://dx.doi.org/10.52321/geolbalc.25.3-4.3.

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The litostratigraphic subdivision includes the Kardif (Cenomanian?), Cerovska (Cenomanian, Turonian), Gradište (Coniacian, Santonian), Kubadin (Coniacian-Campanian), Sinemorec (Coniacian-Campanian), Izgrev (Coniacian-Campanian), Glušnik (Campanian), Konjovo (Campanian) and Dryankovec (Maastrichtian) Formations. The chronostratigraphy is based on microfaunistic (foraminifers) associations. The Cenomanian consists of limnic and coal-bearing undated rocks (Kardif Formation) or of shallow-marine dated clastic rocks and limestones (Cerovska Formation). The Turonian includes the upper part of the sh

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7

Dhondt, Annie V., Marcos A. Lamolda, and Jose Maria Pons. "Stratigraphy of the Coniacian–Santonian transition." Cretaceous Research 28, no. 1 (2007): 1–4. http://dx.doi.org/10.1016/j.cretres.2006.05.015.

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8

Nachev, Ivan, and Ekaterina Dimitrova. "Upper Cretaceous stratigraphy of the Eastern Balkan Mountains." Geologica Balcanica 25, no. 5-6 (1995): 43–74. http://dx.doi.org/10.52321/geolbalc.25.5-6.43.

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The lithostratigraphic subdivision of the Upper Cretaceous in the Eastern Balkan Mountains includes the Balkanbas (Cenomanian?), Dobromir (Cenomanian, partly Turonian), Radova (partly Turonian – Santonian), Trânak (partly Turonian – Coniacian), Karaveljovo (Coniacian, Santonian) and Emine (partly Turonian – Maastrichtian) Formations. The chronostratigraphy is based on foraminiferal microfauna. The Cenomanian is represented by limnic conglomerates, sandstones, siltstones and shales with coals, as well as of shallow-marine clastic, argillaceous and calcareous rocks. The Turonian includes the upp

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9

Akinin, V. V., L. B. Golovneva, and S. V. Shchepetov. "Isotopic age of flora-bearing beds from the Amka Formation stratotype, Okhotsk-Chukotka volcanic belt." Palaeobotany 7 (2016): 38–46. http://dx.doi.org/10.31111/palaeobotany/2016.7.38.

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U-Pb SHRIMP-dating of zircons from flora-bearing volcanic rocks of the Amka Formation stratotype (Ul'ya depression, Okhotsk-Chukotka volcanic belt) yield weighted mean 206Pb/238U age of 85.5 ±2 Ma (Santonian to Coniacian stage). This isotope dating is consistent with inferred Coniacian age of Ul’ya flora from the Amka Formation.

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10

Remin, Zbyszek, Michał Gruszczyński, and Jim D. Marshall. "Changes in paleo-circulation and the distribution of ammonite faunas at the Coniacian–Santonian transition in central Poland and western Ukraine." Acta Geologica Polonica 66, no. 1 (2016): 107–24. http://dx.doi.org/10.1515/agp-2016-0006.

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Abstract Ammonite distribution patterns and carbon and oxygen stable isotopes from the Lipnik-Kije (Poland) and Dubovcy (Ukraine) sections allow us to propose a model of sea water paleo-circulation in central Europe for the Coniacian- Santonian interval. The tectonic evolution of the south-eastern part of Poland, and expansion of the Krukienic Island areas, appears to have been one of the most important factors affecting paleotemperatures and the distribution of ammonite faunas in the shallow, epicontinental sea in this part of Europe. In the Lipnik-Kije section, low-latitude Tethyan ammonites

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11

Toshimitsu, Seiichi, Takashi Hasegawa, and Ken Tsuchiya. "Coniacian–Santonian stratigraphy in Japan: a review." Cretaceous Research 28, no. 1 (2007): 128–31. http://dx.doi.org/10.1016/j.cretres.2006.05.023.

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12

Farouk, Sherif, Mahmoud Faris, and Zaineb Elamri. "Coniacian-Santonian Planktic Stratigraphy in central Tunisia." Cretaceous Research 78 (October 2017): 13–26. http://dx.doi.org/10.1016/j.cretres.2017.05.017.

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13

Guzhikova, Anastasia A., Vladimir A. Grishchenko, Vladimir A. Fomin, Evgeniy Yu Baraboshkin, and Dmitry A. Shelepov. "Magnetostratigraphy of Turonian – Santonian strata on the Samara Right Bank." Izvestiya of Saratov University. Earth Sciences 21, no. 4 (2021): 248–63. http://dx.doi.org/10.18500/1819-7663-2021-21-4-248-263.

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The paper presents the results of petro- and paleomagnetic studies of two sections of Turonian – Santonian on the Samara Right Bank – near Novodevichye, Podval’e villages and detailed geological description of the Novodevichye section. The magnetostratigraphic subdivision and detailed correlation of the sections were carried out. Unknown unconformity in the Podval’e section was recognized. Reverse polarity corresponds to a significant part of the Coniacian – Santonian deposits, the presence of which contradicts the existing ideas about the regime of the Turonian – Santonian geomagnetic field,

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14

Moussavou, Benjamin Musavu. "Bivalves (Mollusca) from the Coniacian-Santonian Anguille Formation from Cap Esterias, Northern Gabon, with notes on paleoecology and paleobiogeography." Geodiversitas 37, no. 3 (2015): 315–24. https://doi.org/10.5252/g2015n3a2.

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Moussavou, Benjamin Musavu (2015): Bivalves (Mollusca) from the Coniacian-Santonian Anguille Formation from Cap Esterias, Northern Gabon, with notes on paleoecology and paleobiogeography. Geodiversitas 37 (3): 315-324, DOI: 10.5252/g2015n3a2, URL: http://dx.doi.org/10.5252/g2015n3a2

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15

Heřmanová, Zuzana, Jiří Kvaček, Jiřina Dašková, and Adam T. Halamski. "Plant reproductive structures and other mesofossils from Coniacian/Santonian of Lower Silesia, Poland." Palaeontologia Electronica 23, no. 3 (2020): 1–23. https://doi.org/10.26879/1097.

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Heřmanová, Zuzana, Kvaček, Jiří, Dašková, Jiřina, Halamski, Adam T. (2020): Plant reproductive structures and other mesofossils from Coniacian/Santonian of Lower Silesia, Poland. Palaeontologia Electronica (a61) 23 (3): 1-23, DOI: 10.26879/1097, URL: http://dx.doi.org/10.26879/1097

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16

Yudova, D. A., L. B. Golovneva, and P. I. Alekseev. "The distribution of the genus Dalembia E. Lebedev et Herman (Magnoliophyta) in Late Cretaceous floras of Northern Pacifica." Palaeobotany 7 (2016): 66–79. http://dx.doi.org/10.31111/palaeobotany/2016.7.66.

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New findings of the genus Dalembia from Late Cretaceous sediments are described: Dalembia sp. from lower part of the Sym Formation (Coniacian – Santonian) of Eastern Siberia; Dalembia sp. from upper part of the Timmerdyakch Formation (Turonian – Coniacian) of Western Siberia; D. vachrameevii E. Lebedev et Herman and the new species D. argentea Yudova et Golovneva from the Chingandzha Formation (Turonian – Coniacian) of Okchotsk-Chukotka volcanogenic belt (Northeastern Russia). The stratigraphic range of the genus Dalembia stretch from the late Albian to Campanian. The geographical area include

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17

Grabovskiy, A. A. "Genus Arctopteris (Pteridaceae) in the Cretaceous floras of the Northeast of Russia." Palaeobotany 12 (2021): 34–55. http://dx.doi.org/10.31111/palaeobotany/2021.12.34.

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The ferns of the genus Arctopteris from the Cretaceous deposits of the North-East of Russia (the Aigur, Galimov, Krivorechenskaya, Arman, Amka, Gidra, Kananyga, Tylpegyrgynai, Poperechnaya, Emuneret, Barykov and Rarytkin formations) were re-examined. In the result eight species were included in this genus: A. lenaensis Vassilevskaja (Aptian), A. heteropinnula Kiritchkova (lower–middle Albian), A. kolymensis Samylina (lower–middle Albian), A. obtusipinnata Samylina (lower–middle Albian), A. rarinervis Samylina (lower Albian-Coniacian), A. penzhinensis E. Lebedev (Turonian-Coniacian), A. ilirnen

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18

Pervushov, E. M., I. P. Ryabov, A. Yu Guzhikov, V. B. Seltser, E. A. Kalyakin, and V. A. Fomin. "Bio-Magnetostratigraphy of the Turonian–Coniacian Deposits of the Lower Bannovka Section, South-East of the Russian Plate." Стратиграфия 32, no. 1 (2024): 58–90. http://dx.doi.org/10.31857/s0869592x24010058.

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The lithological, paleontological and biostratigraphic characteristics of the Turonian–Coniacian deposits of the Lower Bannovka section, the stratotype of the Bannovka Formation (Volga region, Turonian) are presented. Magnetostratigraphic characteristics of thе sediments have been supplemented and elaborated. The petromagnetic data contribute to additional division of the section and to revealing the sedimentation rhythmicity. Paleomagnetic data combined with benthic foraminifera data contribute to the most detailed correlation of the Turonian–Coniacian deposits in the Volga region. The specia

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Ljubović-Obradović, Darivojka, Ivana Carević, Monika Mirković, and Nenad Protić. "Upper Cretaceous volcanoclastic-sedimentary formations in the Timok Eruptive Area (eastern Serbia): new biostratigraphic data from planktonic foraminifera." Geologica Carpathica 62, no. 5 (2011): 435–46. http://dx.doi.org/10.2478/v10096-011-0031-x.

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Upper Cretaceous volcanoclastic-sedimentary formations in the Timok Eruptive Area (eastern Serbia): new biostratigraphic data from planktonic foraminifera The biostratigraphy of the Upper Cretaceous volcanoclastic-sedimentary formations cropping out in the Timok Eruptive Area of the eastern Serbian Carpatho-Balkanides is presented. Four lithostratigraphic units of formation rank are recognized in the Timok area: Stublica Clastics (Upper Albian/Cenomanian), Oštrelj (Lower Turonian/Santonian), Bor Clastics (Campanian/Maastrichtian) and Bukovo (Campanian/?Maastrichtian). Forty two species of plan

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Candeiro, Carlos Roberto, Rodrigo Pinto De Azevedo, and Priscila Maria Da Silva. "PRELIMINARY APPROACH ON DEPOSITIONAL ENVIRONMENTAL OF THE UBERABA FORMATION (UPPER CRETACEOUS), PEIRÓPOLIS SITE, MINAS GERAIS STATE, BRAZIL: AN INTRODUCTION." Caminhos de Geografia 8, no. 22 (2007): 81–85. http://dx.doi.org/10.14393/rcg82215625.

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The Coniacian-Santonian Uberaba Formation of Triângulo Mineiro region hás yielded a important paleofauna from fluvial and associated paleoenvironments. Although poor, fossil content are represented by invertebrates and vertebrates. The paleontological and geological data suggested that Uberaba Formation is characterized by a fluvial of a braided type.

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Landman, Neil H., A. Guy Plint, and Ireneusz Walaszczyk. "Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin." Bulletin of the American Museum of Natural History 2017, no. 414 (2017): 1–173. https://doi.org/10.1206/0003-0090-414.1.1.

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Landman, Neil H., Plint, A. Guy, Walaszczyk, Ireneusz (2017): Allostratigraphy And Biostratigraphy Of The Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin. Bulletin of the American Museum of Natural History 2017 (414): 1-173, DOI: 10.1206/0003-0090-414.1.1, URL: http://www.bioone.org/doi/10.1206/0003-0090-414.1.1

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Guzhikov, A. Yu, E. Yu Baraboshkin, I. P. Ryabov, M. A. Ustinova, and V. S. Vishnevskaya. "Anomalous features of the geomagnetic field behavior at the end of the Cretaceous normal superchron based on the results of the study of the Turonian–Santonian in the Southwestern Crimea." Физика земли, no. 1 (February 15, 2024): 11–36. http://dx.doi.org/10.31857/s0002333724010024.

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In 394 samples characterizing 266 stratigraphic levels in four Turonian–Santonian sections in the Southwestern Crimea, characteristic remanent magnetization components (ChRM) formed at the stage of diagenesis is identified. The data obtained represent the record of the Paleocene geomagnetic variations of high amplitude (rms deviation S = 25.9° with a fixed cut-off angle of 45°, which is about twice as high as the model S for this latitude) in the sediments formed in ~5–6 Ma and are interpreted as anomalous behavior of the geomagnetic field in the Turonian, Coniacian, and Santonian.

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23

Ardestani, Meysam Shafiee, Mohamad Vahidinia, Amir Hossein Rahiminejad, and Elham Bohloli. "Planktonic foraminiferal biostratigraphy and determination of the Santonian-Campanian boundary in the Zagros sedimentary basin, SW Iran." Stratigraphy 19, no. 1 (2022): 51–64. http://dx.doi.org/10.29041/strat.19.1.03.

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The carbonate-dominated Upper Cretaceous Ilam Formation is representative of an important reservoir in the Zagros Basin. In this study, planktonic foraminiferal biostratigraphy of the Ilam Formation was investigated in the Kuh-e-Surgah section in western Iran. In the studied section, the 170 m thick Ilam Formation is mainly composed of imestones with shale intercalations. The formation conformably overlies and underlies the Surgah and Gurpi formations, respectively. Twelve genera and 24 species of planktonic foraminifera were identified. The following planktonic foraminiferal biozones were ide

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Akinin, Vyacheslav V., Lina B. Golovneva, Ekaterina B. Salnikova, Irina V. Anisimova, Sergey V. Shczepetov, and Natalya V. Nosova. "The composition and age of the Ul’ya flora (Okhotsk-Chukotka volcanic belt, North-East of Russia): paleobotanical and geochronological constraints." Acta Palaeobotanica 59, no. 2 (2019): 251–76. http://dx.doi.org/10.2478/acpa-2019-0014.

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Abstract The Ul’ya flora comes from the Amka Formation of the Ul’ya Depression, located in the Okhotsk–Chukotka volcanic belt (North-East Russia). This flora includes ~50 species, among which conifers predominate. Ferns and angiosperms are also diverse. The Ul’ya flora is characterized by high endemism and by the presence of numerous Early Cretaceous relicts (Hausmannia, Podozamites, Phoenicopsis, Baiera, Sphenobaiera). Four new endemic species of conifers from the Ul’ya flora are described: Elatocladus amkensis Golovneva, sp. nov., Araucarites sheikashoviae Golovneva, sp. nov., Elatocladus gy

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Wolfgring, Erik, and Maria Rose Petrizzo. "Upper Cretaceous benthic foraminiferal biostratigraphy at IODP Site U1513, Mentelle Basin, SE Indian Ocean." Micropaleontology 70, no. 1 (2024): 43–59. http://dx.doi.org/10.47894/mpal.70.1.03.

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A biostratigraphic assessment of the benthic foraminiferal record at International Ocean Discovery Program (IODP) Site U1513 in the Mentelle Basin (southeast Indian Ocean, offshore western Australia), yielding a Turonian through Santonian deep-water benthic foraminiferal assemblage is presented. Predominantly calcareous deep-water benthic foraminifera are recovered, whereas agglutinated benthic taxa show a rare occurrence. Epifaunal benthic foraminifera make up ~50% of the total assemblage during the Turonian to Santonian. The most frequently recorded taxa are gavelinellids and gyroidinoids. A

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Pervushov, Evgeny M. "Colonial Leptophragmidae (Porifera, Hexactinellida) from the Lower Santonian of the Volga region." Izvestiya of Saratov University. Earth Sciences 23, no. 1 (2023): 53–60. http://dx.doi.org/10.18500/1819-7663-2023-23-1-53-60.

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Study of the skeletal morphology of a new representative of the Leptophragmidae family, with no suboscula in its structure, provides support for the earlierspecified regularities in generation of Hexactinellida modular forms. Good preservationstate of a majorcolony has made it possible to specify the aspects of paleoecology and taphonomy in the later representatives of the Middle Coniacian – Early Santonian succession of siliceous sponges.

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Andrieu, Simon, Nicolas Saspiturry, Marine Lartigau, Benoit Issautier, Paul Angrand, and Eric Lasseur. "Large-scale vertical movements in Cenomanian to Santonian carbonate platform in Iberia: indicators of a Coniacian pre-orogenic compressive stress." BSGF - Earth Sciences Bulletin 192 (2021): 19. http://dx.doi.org/10.1051/bsgf/2021011.

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The Cenomanian to early Santonian interval is usually considered a time of postrifting tectonic quiescence around the northern margins of Iberia that preceded the onset of the Pyrenean convergence by crustal thrusting in the latest Santonian. However, plate kinematic models of the Mesozoic evolution of Iberia poorly constrain the Turonian-Santonian position of Iberia relative to Eurasia. This study reconstructs changes in the sedimentary facies and architecture of the Iberian carbonate platform throughout the Late Cretaceous and sheds new light on the geodynamic evolution of the Iberia-Eurasia

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Squires, Richard L. "Northeast Pacific Cretaceous record ofPyropsis(Neogastropoda: Pyropsidae) and paleobiogeography of the genus." Journal of Paleontology 85, no. 6 (2011): 1199–215. http://dx.doi.org/10.1666/11-063.1.

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The neogastropod genusPyropsisConrad, 1860 (family Pyropsidae Stephenson, 1941) is recognized for the first time from Upper Cretaceous shallow-marine siliciclastic rocks in the region extending from Vancouver Island, British Columbia southward to southern California. Four new species were detected:Pyropsis aldersoni(earliest Coniacian, southern California),Pyropsis californica(early Coniacian, northern California),Pyropsis louellae(late Coniacian or early Santonian, northern California), andPyropsis grahami(late early Campanian, Vancouver Island).A critical review of the global reports ofPyrop

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Gaspard, Danièle, and Sylvain Charbonnier. "The debated question of asymmetrical rhynchonellids (Brachiopoda, Rhynchonellida): examples from the Late Cretaceous of Western Europe." BSGF - Earth Sciences Bulletin 191 (2020): 1. http://dx.doi.org/10.1051/bsgf/2019016.

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Many Cretaceous asymmetrical rhynchonellid brachiopods (Brachiopoda, Rhynchonellida) have long been considered as Rhynchonella difformis (Valenciennes in Lamarck, 1819). After a revision, Owen (1962) included the Cenomanian specimens from Europe in Cyclothyris M’Coy, 1844. Later, Manceñido et al. (2002) confirmed this decision and critically mentioned the name of another asymmetrical rhynchonellid genus from Spain, Owenirhynchia Calzada in Calzada and Pocovi, 1980. Specimens with an asymmetrical anterior margin (non particularly ecophenotypical), from the Late Coniacian and the Santonian of Le

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Herkat, Missoum. "Eustatic and palaeogeographic control of the western Aurès Upper Cretaceous sedimentation (Algeria)." Bulletin de la Société Géologique de France 175, no. 3 (2004): 273–88. http://dx.doi.org/10.2113/175.3.273.

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Abstract The Upper Cretaceous sedimentation in the Aurès Mountains occurred in a subsident basin delimited to the south by the Saharan platform and by the Preatlasic high zone to the north. In these series 4 transgressive-regressive megasequences are distinguished, the first one (I) in the late Albian-Cenomanian, the second one (II) in the Turonian, the third one (III) in the Coniacian - Santonian and the fourth one (IV) in the Campanian - Maastrichtian. Each megasequence is made up of three or four sequences, which correspond to third order cycles identified in the eustatic chart of Haq et a

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Granchovski, Georgi, and Atanas Hikov. "Calcareous nannofossils from the middle Coniacian–Santonian in the Mirkovo Formation, Central Srednogorie tectonic unit (central South Bulgaria)." Review of the Bulgarian Geological Society 84, no. 3 (2023): 173–76. http://dx.doi.org/10.52215/rev.bgs.2023.84.3.173.

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Three sedimentary sections (Dalgi Rid, Milkova Cheshma and Toplika), containing Mn-bearing nodules, of the Mirkovo Formation in the Central Srednogorie tectonic unit have been investigated for their calcareous nannofossil content. The assemblages are very poorly preserved, depleted and relatively low in taxonomic diversity. The most abundant taxa are Watznaueria barnesiae, Eiffellithus eximius, Helicolithus anceps, Micula staurophora and Lucianorhabdus cayeuxii. Additionally, Lithastrinus grillii was detected in the section Toplika. Based on the nannofossil data, the sediments at Dalgi Rid and

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Bell, Gorden L., Kenneth R. Barnes, and Michael J. Polcyn. "Late Cretaceous mosasauroids (Reptilia, Squamata) of the Big Bend region in Texas, USA." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 103, no. 3-4 (2012): 571–81. http://dx.doi.org/10.1017/s1755691013000406.

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ABSTRACTUpper Cretaceous marine rocks of the Big Bend Region of trans-Pecos Texas preserve a number of marine-adapted mosasauroids. At least three unnamed taxa of basal mosasauroids are represented by remains from shaly limestones in the middle Turonian portion of the Boquillas Formation. These occur along with remains of larger derived mosasaurs referable to Russellosaurina and an undescribed tylosaurine. Derived mosasaurs from the middle to late Coniacian include the first report of Tylosaurus kansasensis outside of Kansas, T. nepaeolicus, Platecarpus planifrons, and Platecarpus aff. P. plan

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Cooper, Dee Ann, Roger W. Cooper, James B. Stevens, M. S. Stevens, William A. Cobban, and Ireneusz Walaszczyk. "The Boquillas Formation of the Big Bend National Park, Texas, USA, a reference Cenomanian through Santonian (Upper Cretaceous) carbonate succession at the southern end of the Western Interior Seaway." Acta Geologica Polonica 67, no. 4 (2017): 547–65. http://dx.doi.org/10.1515/agp-2017-0033.

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Abstract The upper lower Cenomanian through middle Santonian (Upper Cretaceous) of the Boquillas Formation in the Big Bend Region of Trans-Pecos Texas consists of a marine carbonate succession deposited at the southern end of the Western Interior Seaway. The Boquillas Formation, subdivided into the lower, c. 78 m thick limestone-shale Ernst Member, and the upper, c. 132 m thick limestone/chalk/marl San Vicente Member, was deposited in a shallow shelf open marine environment at the junction between the Western Interior Seaway and the western margins of the Tethys Basin. Biogeographically, the a

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Radoicic, Rajka, Vladan Radulovic, Dragoman Rabrenovic, and Barbara Radulovic. "The age of the brachiopod limestones from Guca, western Serbia." Annales g?ologiques de la Peninsule balkanique, no. 71 (2010): 73–93. http://dx.doi.org/10.2298/gabp1071073r.

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The asymmetric rhynchonellide brachiopod Cyclothyris? globata (ARNAUD, 1877) has a large distribution in the Coniacian, Santonian and Campanian outcrops of the western Tethys. The species has also been identified in Guca, (Vardar Zone, western Serbia), where it occurs together with the capillate terebratuloid ?Terebratula? sp. (gen. et sp. nov.). In addition to Serbia, this brachiopod association is found in many localities of northeastern Bulgaria (Shumen Formation). In older literature, in Romania and Bulgaria, ?Terebratula? sp. (gen. et sp. nov.) was confused with the Late Maastrichtian Ter

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Van Melle, Jeremie, Washinton Vilema, Bastien Faure-Brac, et al. "Pre-collision evolution of the Piñón oceanic terrane of SW Ecuador: stratigraphy and geochemistry of the “Calentura Formation”." Bulletin de la Société Géologique de France 179, no. 5 (2008): 433–43. http://dx.doi.org/10.2113/gssgfbull.179.5.433.

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Abstract The stratigraphic revision of the southern coastal Ecuadorian series makes possible the reconstruction of the pre-collision history of the Caribbean plateau accreted to the Ecuadorian margin. The Coniacian age of the oceanic basement (Piñón Fm) indicates that the latter is part of the Caribbean oceanic plateau. It is overlain by the Calentura Fm, which comprises from base to top: (i) 20 to 200 m of lavas and volcanic breccias of arc affinity (Las Orquídeas Mb), (ii) siliceous, organic rich black limestones of (middle?) Coniacian age, (iii) red, radiolarian rich, calcareous cherts a

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Wagreich, M. ""OAE 3" – regional Atlantic organic carbon burial during the Coniacian–Santonian." Climate of the Past 8, no. 5 (2012): 1447–55. http://dx.doi.org/10.5194/cp-8-1447-2012.

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Abstract. The Coniacian–Santonian time interval is the inferred time of oceanic anoxic event 3 (OAE 3), the last of the Cretaceous OAEs. A detailed look on the temporal and spatial distribution of organic-rich deposits attributed to OAE 3 suggests that black shale occurrences are restricted to the equatorial to mid-latitudinal Atlantic and adjacent basins, shelves and epicontinental seas like parts of the Caribbean, the Maracaibo Basin and the Western Interior Basin, and are largely absent in the Tethys, the North Atlantic, the southern South Atlantic, and the Pacific. Here, oxic bottom waters

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Wagreich, M. ""OAE 3" – a low- to mid-latitude Atlantic oceanic event during the Coniacian-Santonian." Climate of the Past Discussions 8, no. 2 (2012): 1209–27. http://dx.doi.org/10.5194/cpd-8-1209-2012.

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Abstract. The Coniacian-Santonian time interval is the inferred time of oceanic anoxic event 3 (OAE 3), the last of the Cretaceous OAEs. A detailed look on the temporal and spatial distribution of organic-rich deposits attributed to OAE 3 suggests that black shale occurrences are restricted to the equatorial to mid-latitudinal Atlantic and adjacent basins, shelves and epicontinental seas like parts of the Caribbean, the Maracaibo Basin and the Western Interior Basin, and are largely absent in the Tethys, the North Atlantic, the southern South Atlantic, and the Pacific. Here, oxic bottom waters

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Cooper, Michael R. "On the status of Kaiparaites Matsumoto, 1955 (Cretaceous; Ammonoidea: Kossmaticeratidae)." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 294, no. 3 (2019): 307–10. http://dx.doi.org/10.1127/njgpa/2019/0861.

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The kossmaticeratid ammonite Kaiparaites was on its inception synonymized by its author (Matsumoto 1955) with Natalites (Collignon 1954). However, close comparison of the type species of these two genera shows them to be morphologically and stratigraphically distinct. Whereas Santonian Natalites shares the flexed constrictions of late Turonian–Coniacian Kossmaticeras, the straight constrictions of late Campanian – Maastrichtian Kaiparaites are shared with Caledonites, Gunnarites, Grossouvrites and Jacobites. Consequently, Kaiparaites is resurrected from the synonymy of Natalites and demonstrat

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Golovneva, L. B. "The Late Cretaceous flora of the Khatanga depression." Palaeobotany 3 (2012): 32–61. http://dx.doi.org/10.31111/palaeobotany/2012.3.32.

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Fossil plants from the Late Cretaceous deposits of the Khatanga depression are joined in three floristic assemblages: the Ledyanaya assemblage (the Turonian-Coniacian), the Kheta assemblage (the late Coniacian-early Santonian) and Mutino assemblage (the late Santonian-early Campanian). The Ledyanaya floristic assemblage contains ferns (Anemia rarinervis Abramova), cycadophytes (Nilssonia sp.), ginkgoales (Ginkgo ex gr. sibirica Heer), conifers (Taxodium sp., Sequoia tenuifolia (Schmalh.) Sveshn. et Budants.) and angiosperms (Pseudoprotophyllum hatangaense Abramova, Liriodendropsis simplex (New

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Lindgren, Johan, and Mikael Siverson. "Tylosaurus ivoensis: a giant mosasaur from the early Campanian of Sweden." Transactions of the Royal Society of Edinburgh: Earth Sciences 93, no. 1 (2002): 73–93. http://dx.doi.org/10.1017/s026359330000033x.

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ABSTRACTThe nominal species Mosasaurus ivoensis from the latest early Campanian of the Kristianstad Basin in southern Sweden, is redescribed and assigned to the tylosaurine genus Tylosaurus on the basis of its dental and vertebral morphology. A partial skeleton (KUVP 1024) from the late Coniacian to earliest Campanian Smoky Hill Chalk Member of the Niobrara Formation in western Kansas, USA, was previously referred to “M”. ivoensis. Nevertheless, its marginal teeth are markedly different, both in size and morphology, from those of topotypic T. ivoensis.Examination of type specimens and topotypi

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Jenkyns, H. C., A. S. Gale, and R. M. Corfield. "Carbon- and oxygen-isotope stratigraphy of the English Chalk and Italian Scaglia and its palaeoclimatic significance." Geological Magazine 131, no. 1 (1994): 1–34. http://dx.doi.org/10.1017/s0016756800010451.

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AbstractA detailed carbon- and oxygen-isotope stratigraphy has been generated from Upper Cretaceous coastal Chalk sections in southern England (East Kent; Culver Cliff, Isle of Wight; Eastbourne and Seaford Head, Sussex; Norfolk Coast) and the British Geological Survey (BGS) Trunch borehole, Norfolk. Data are also presented from a section through the Scaglia facies exposed near Gubbio, Italian Apennines. Wherever possible the sampling interval has been one metre or less. Both the Chalk and Scaglia carbon-isotopic curves show minor positive excursions in the mid-Cenomanian, mid- and high Turoni

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ElNahas, Samah, Mohamed Boukhary, Abdel-Mohsen M. Morsi, Mahmoud Faris, Omar H. Cherif, and Sami Morsi. "Biostratigraphic Zonation for the Cenomanian – Santonian Succession of the Abu Sennan Oilfield,Abu Gharadig Basin, Egypt." Stratigraphy 22, no. 1 (2025): 1–40. https://doi.org/10.29041/strat.22.1.01.

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Foraminifera, ostracod and calcareous nannofossil contents of the Cenomanian-Santonian succession are integrated to enhance and refine biostratigraphic divisions and age determinations in the Abu Sennan oil field, Abu Gharadig basin, North Western Desert, Egypt. Foraminiferal (seven), ostracod (eleven) and calcareous nannofossil (seven) zones were identified and correlated with international and local zonal schemes. The boundary of the Santonian age (within Khoman Formation) is delineated by the first appearance of the foraminifera Dicarinella concavata and D. canaliculata; the ostracod Brachy

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Shczepetov, S. V., and A. B. Herman. "On the non-marine stratigraphy and floras of north-eastern Russia." Стратиграфия 27, no. 3 (2019): 40–52. http://dx.doi.org/10.31857/s0869-592x27340-52.

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Some decisions of the Third Inter-departmental Regional Stratigraphic Meeting on Precambrian, Paleozoic and Mesozoic of North-eastern Russia (St. Petersburg, 2002) are analysed in the light of latest data obtained. It is shown that regional stratigraphic units (‘Horizons’) of non-marine Cretaceous recognised in this Meeting are in fact not the basic subdivisions, but rather specialised biostratigraphic units, namely ‘Beds with flora’. Ages of some of these units are specified, notably Beds with Arman Flora is Turonian–Coniacian, Beds with Amka Flora is Coniacian and Beds with Arkagala Flora is

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Dimitrova, Ekaterina, and Boris Valchev. "Attempt for Upper Cretaceous planktic foraminiferal zonation of the Srednogorie and Eastern Balkan Zones (Bulgaria)." Geologica Balcanica 36, no. 1-2 (2007): 55–63. http://dx.doi.org/10.52321/geolbalc.36.1-2.55.

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Thirteen biostratigraphical zones were defined as a result of summarizing of the available data on the taxonomy, stratigraphical range and occurrence of the Upper Cretaceous planktic foraminifera from the Srednogoriå and East Balkan. The zones are: Rotalipora cushmani Taxon Range Zone (Late Cenomanian), Dicarinella imbricata Interval Zone (Early Turonian), Marginotruncana renzi – Marginotruncana sigali Interval Zone (Middle Turonian), Marginotruncana schneegansi Interval Zone (Late Turonian), Dicarinella primitiva Interval Zone (Early Coniacian), Dicarinella concavata Interval Zone (Late Conia

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Gonzalez, Wilma B. Aleman, Jean M. Self-Trail, W. Burleigh Harris, Jessica Pierson Moore, and Kathleen M. Farrell. "Depositional sequence stratigraphy of Turonian to Santonian sediments, Cape Fear arch, North Carolina Coastal Plain, USA." Stratigraphy 16, no. 1 (2020): 293–314. http://dx.doi.org/10.29041/strat.17.4.293-314.

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ABSTRACT: A new sequence stratigraphic framework for Turonian to Santonian (94-84 Ma) sediments is established using data from the USGS Kure Beach and Elizabethtown cores collected from the Atlantic Coastal Plain of North Carolina (NC). These sediments represent some of the oldest marine units deposited on the southeastern Atlantic Coastal Plain and record the early development of a clastic wedge atop crystalline basement. Sediments were deposited as transitional marginal-marine to marine units in a complex interplay of fluvial, estuarine, and shelf environments. Repetitive lithologies and min

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Pervushov, Evgeniy M. "Genus Tremabolites Zittel, 1878 (Porifera, Hexactinellida)." Izvestiya of Saratov University. New Series. Series: Earth Sciences 21, no. 2 (2021): 103–17. http://dx.doi.org/10.18500/1819-7663-2021-21-2-103-117.

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Tremabolites sponges known among the Middle-Late Cretaceous beds in Europe are reliably identifiable due to the numerous openings against the background of the skeleton smooth upper surface. The ideas of the level of organization in these sponges and of the species characteristics are far from being univocal. The paper deals with the species diversity of Tremabolites common in the Coniacian – Santonian rocks from the Volga Region. Examples of regeneration and budding in the representatives of the group are presented.

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Golovneva, L. B., T. M. Kodrul, and E. V. Bugdaeva. "The Late Cretaceous floras of the Zeya-Bureya Basin." Palaeobotany 11 (2020): 5–47. http://dx.doi.org/10.31111/palaeobotany/2020.11.5.

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A general characterization of the Late Cretaceous floras of the Zeya-Bureya Basin is provided based on floristic assemblages from Russia (Amur Region) and China (Heilongjiang Province). Four phases of floral evolution were revealed: the Turonian-Coniacian (the Sutara flora), the Santonian (the Yong’ancun and Middle Kundur floras), the Campanian (the Taipinglinchang and Late Kundur floras) and the late Maastrichtian (Bureya flora). This long paleofloral succession provides possibility for investigation of different trends in the evolution of the Late Cretaceous taxa, flora, and climate.

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PAUL, C. R. C., and M. A. LAMOLDA. "Testing the precision of bioevents." Geological Magazine 146, no. 5 (2009): 625–37. http://dx.doi.org/10.1017/s0016756809006463.

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AbstractDeciding which of two bioevents is the less diachronous is a common problem in biostratigraphy. The most accurate correlation uses the finest timescale available. Chemostratigraphy or cyclostratigraphy offer a potential precision of about 10 ka. Graphic correlation can then be used to test the precision of bioevents and to quantify any mismatch. It can also be used to determine in which section any event occurs earlier. Application of these ideas to correlation of the Cenomanian–Turonian and Coniacian–Santonian boundaries demonstrates that some bioevents are as precise as chemo- and cy

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Banjesevic, Miodrag. "Upper cretaceous magmatic suites of the Timok magmatic complex." Annales g?ologiques de la Peninsule balkanique, no. 71 (2010): 13–22. http://dx.doi.org/10.2298/gabp1071013b.

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The Upper Cretaceous Timok Magmatic Complex (TMC) developed on a continental crust composed of different types of Proterozoic to Lower Cretaceous rocks. The TMC consists of the magmatic suites: Timok andesite (AT) - Turonian-Santonian, Metovnica epiclastite (EM) - Coniacian-Campanian, Osnic basaltic andesite (AO) and Jezevica andesite (AJ) - Santonian-Campanian, Valja Strz plutonite (PVS) - Campanian and Boljevac latite (LB). The sedimentary processes and volcanic activity of the TMC lasted nearly continuously throughout nearly the whole Late Cretaceous. The sedimentation lasted from the Albia

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Al-Rifaiy, I. A., O. H. Cherif, and B. A. El-Bakri. "Late Coniacian - Early Santonian Foraminifera from the Wadi Ghudran Formation in Jordan." Géologie Méditerranéenne 18, no. 4 (1991): 207–19. http://dx.doi.org/10.3406/geolm.1991.1464.

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