Results 61 to 70 of about 1,435 (177)
Desmoceratidae and Silesitidae (Ammonitida) from the Aptian - Albian of Antarctica
Fil: Medina, Francisco Alberto. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Geociencias Basicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales.
Medina, Francisco Alberto +1 more
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One of the significant results of the multidisciplinary investigations carried out during recent years in the Lower Aptian historical stratotype of the Cassis-La Bédoule region (South-Eastern France) was a proposal to update the local Upper Barremian ...
Ropolo Pierre +4 more
doaj
Calcareous nannofossil biostratigraphy of Sarcheshmeh and Sanganeh formations in the west of Kopet-Dagh Basin, Sheikh Section [PDF]
The Kopet-Dagh Basin is located in the north and north east of Iran, within the border triangle of Iran, Turkmenistan and Afghanistan. Sediments of Cretaceous age are well exposed in this basin.
Azam Mahanipour +1 more
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Recent biostratigraphic research in the marly limestones of the Cassis-La Bédoule area (SE France) provided a rich macrofauna of Douvilleiceratidae Parona & Bonarelli, 1897. From the uppermost Barremian (Pseudocrioceras waagenoides Subzone) to the middle
Tronchetti Guy +4 more
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THE APTIAN STRATIGRAPHY OF SOUTHERN TUARKYR (NW TURKMENISTAN, CENTRAL ASIA)
The ammonite successions of Turkmenistan, particularly those of the Greater Balkhan and Tuarkyr areas, are considered references for the Aptian Stage. Six sections across the uppermost Barremian - basal Upper Aptian interval were studied in the Tuarkyr ...
FABRIZIO CECCA +2 more
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Major global palaeobiologic and palaeoenvironmental changes occurred during the Early Aptian. Precise dating and timing of the different events is crucial to determine possible cause-effect relationships between them.
J.A. MORENO BEDMAR +8 more
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More than 2,200 pyritized ammonites of the Superfamily Phylloceratatoidea have been collected in consonance with the scale of the ammonite zonation of the expanded Marnes Bleues Fm in the Vocontian Basin (SE France).
Joly Bernard, Delamette Michel
doaj
Substantiation of the Barremian/Aptian boundary
This paper focuses on the Barremian/Aptian boundary in the Trans-Caspian area. Results of a stratigraphical study of the uppermost Barremian and the lower Aptian succession in the Trans-Caspian area are presented. The bed-by-bed description of three sections — Keldzhe, Tekedzhik and Utuludzha — is given as well as detailed lithologic columns.
Bogdanova, T.N., Prozorovsky, V.A.
openaire +1 more source
A bioprovince for the Barremian–Aptian charophytes of the Central Tethyan Archipelago
A comprehensive bibliographic compilation of dozens of worldwide records of charophytes from the Barremian to early Aptian interval has been revisited aiming to gather the regional and global distribution data for the clavatoracean family. The compiled data were studied with the palaeontological statistics software PAST (PAleontological STatistics ...
Alba Vicente +4 more
openaire +3 more sources
Biostratigraphy of Lower Cretaceous from Selected Borehole in central Iraq
تكوين سرمورد هو تكوين مهم تم ترسيبه في شمال ووسط العراق الطباشيري السفلي. تمت دراسته لأغراض الرسم الطبقي الحيوي في قسمين تحت السطح في آبار حقل نفط تكريت: TK3 و TK5 في حكومة تكريت. يُعرف التكوين بأهميته وقد تمت دراسته على نطاق واسع من قبل الباحثين. تشكيل
Luay S. Shakir, Anwar K. Mousa
doaj +1 more source

