Results 21 to 30 of about 7,015 (163)

BIOSTRATIGRAFIA DELL'APTIANO IN FACIES DI PIATTAFORMA CARBONATICA DELLE MURGE BARESI (PUGLIA - ITALIA MERIDIONALE)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
Within the "Calcare di Bari" Formation (Valanginian p.p.-Cenomanian) the Aptian is characterized by three lithostratigraphic members: the Palorbitoline limestone Member and the Corato limestone Member, mainly early Aptian in age (Bedoulian); the ...
ELENA LUPERTO SINNI, JEAN PIERRE MASSE
doaj   +1 more source

Investigation of palaeotemperature changes trend in Aptian–Albian carbonate deposits of the Zagros Fold-Thrust Belt based on oxygen isotope data [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2019
I Abstract In this study, geochemical (including elemental and stable isotope) data were used for study of climatic changes during the deposition of Aptian carbonate of the Dariyan Formation in the Zagros Fold-Thrust Belt.
Seyed Mohammad Ali Moosavizadeh
doaj   +1 more source

Long-term Aptian marine osmium isotopic record of Ontong Java Nui activity

open access: yes, 2021
The early to mid-Aptian was punctuated by episodic phases of organic-carbon burial in various oceanographic settings, which are possibly related to massive volcanism associated with the emplacement of the Ontong Java, Manihiki, and Hikurangi oceanic ...
Jovane, Luigi   +22 more
core   +1 more source

The record of the early Toarcian and early Aptian oceanic anoxic events in the Apenninic Carbonate Platform (Southern Italy) [PDF]

open access: yes, 2011
About one third of the carbon dioxide released mainly from burning of fossil fuels is absorbed into the oceans where it reacts to form carbonic acid.
Trecalli, Alberto
core   +1 more source

Echinoids of the Genus Tetragramma Agassiz (Phymosomatoida) from the Aptian Sediments of the Basab Region, Northwest of Kerman, Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2013
The echinoid fauna of Basab area (Aptian), northwest of Kerman, is fairly rich and diverse, represented by Pygaulidae, Acropeltidae, Emiratiidae, Toxasteridae, Holectypidae, Stomechinidae and Saleniidae.
M.R. Vaziri, A.L. Arab
doaj  

Europatitan eastwoodi, a new sauropod from the lower Cretaceous of Iberia in the initial radiation of somphospondylans in Laurasia [PDF]

open access: yesPeerJ, 2017
The sauropod of El Oterillo II is a specimen that was excavated from the Castrillo de la Reina Formation (Burgos, Spain), late Barremian–early Aptian, in the 2000s but initially remained undescribed.
Fidel Torcida Fernández-Baldor   +4 more
doaj   +2 more sources

Uppermost lower aptian transgressive records in mexico and spain: chronostratigraphic implications for the Tethyan sequences [PDF]

open access: yes, 2012
A widespread marine transgression, which began at the very end of the Early Aptian, is well recorded in Mexico and Spain. In Mexico, this transgression was the most important Aptian transgressive event and its record begins in the Dufrenoyia justinae ...
Moreno-Bedmar, Josep A.   +3 more
core   +1 more source

First Record of Aptian- Cenomanian Brachiopods from the Vezk Section (South of Yasuj, Iran) [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Brachiopod faunas from the Aptian- Cenomanian Vezk section in southwesternIran comprise ten species in six genera, namely Sellithyris cenomanensis, Sellithyris tornacensis, Sellithyris phaseolina, Phaseolina phaseolina, Tropeothyris sp., Concinnithyris ...
T. Binazadeh
doaj  

REVISION OF THE AMPHIASTRAEIDAE FROM THE MONTI D'OCRE AREA(SCLERACTINIA; EARLY CRETACEOUS)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2012
The four Amphiastrea species from the Early Aptian of the Monti d'Ocre area described as new by Prever (1909) are revised on the basis of the type material. One species - Amphiastrea paronai - remains in this genus.
HANNES LÖSER
doaj   +1 more source

The lower Aptian ammonites of the Les Ferres Aptian Basin (Lower Cretaceous, Southeast of France) Part I: Introduction and biostratigraphy [PDF]

open access: yesCarnets de géologie (Notebooks on geology), 2019
On the southern margin of the Vocontian Basin (SE France), for taphonomic reasons (fragmentation, reworking, pyritization), lower Aptian (Lower Cretaceous) deposits of the interval between the Deshayesites deshayesi and Dufrenoyia furcata zones are usually not suitable for studying the late ontogenetic developments of ammonites (fossil cephalopods). In
Bersac, Stéphane, Bert, Didier
openaire   +2 more sources

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