Results 31 to 40 of about 843 (161)

THE MIDDLE JURASSIC TO LOWER CRETACEOUS SUCCESSION OF THE PONIKVE KLIPPE: THE SOUTHERNMOST OUTCROPS OF THE SLOVENIAN BASIN IN WESTERN SLOVENIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2014
The Slovenian Basin was a Mesozoic deep-water paleogeographic domain located north of the Dinaric Carbonate Platform. Due to a considerable amount of southward-directed thrusting and subsequent erosion, the marginal parts of this basin are only sparsely ...
BOŠTJAN ROŽIČ   +3 more
doaj   +1 more source

Physical modeling of salt structures in the middle south Atlantic marginal basins and their controlling factors

open access: yesPetroleum Exploration and Development, 2021
With many types of salt structures developed in the Lower Cretaceous Aptian Formation, the passive continental marginal basins in the middle segment of the south Atlantic are hot areas of deep-water petroleum exploration.
Yixin YU   +5 more
doaj   +1 more source

The Douvilleiceratidae (Ammonoidea) of the Lower Aptian historical stratotype area at Cassis-La Bédoule (SE France)

open access: yesCarnets de Géologie, 2008
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
doaj  

Towards a standard ammonite zonation for the Aptian (Lower Cretaceous) of northern Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Detailed data on twenty-seven species of ammonites identified in three stratigraphic sections of northern Mexico, allow further refinement of the Aptian ammonite biozonations of previous authors. Four formal ammonite biozones are proposed.
Ricardo Barragán-Manzo   +1 more
doaj  

Taxic diversity and ecology of Mesozoic bony fish assemblages from the Khorat Group, NE Thailand [PDF]

open access: yesResearch & Knowledge, 2017
Environmental drivers shape freshwater alpha-diversities. The Khorat Group in northeastern Thailand is a succession of five continental formations ranging from the Middle?
Uthumporn Deesri   +2 more
doaj   +1 more source

Trace fossils from the middle Aptian sedimentary succession of the Bellezma Mountains, NE Algeria

open access: yesBoletín de la Sociedad Geológica Mexicana
The Aptian sedimentary succession exposed in the southern Bellezma Mountains contains a low diversity trace fossil assemblage, with ichnofossils being common in the middle part of the studied section. The recorded trace fossils comprise eight ichnogenera: Archaeonassa, Cochlichnus, Chondrites, Gyrochorte, Palaeophycus, Protovirgularia, Rhizocorallium ...
Imad Bouchemla   +5 more
openaire   +1 more source

New theropod dinosaur from the Lower Cretaceous of Japan provides critical implications for the early evolution of ornithomimosaurs

open access: yesScientific Reports, 2023
Ornithomimosauria consists of the ostrich-mimic dinosaurs, most of which showing cursorial adaptations, that often exhibit features indicative of herbivory.
Soki Hattori   +5 more
doaj   +1 more source

Environmental distribution of post-Palaeozoic crinoids from the Iberian and south-Pyrenean basins, NE Spain [PDF]

open access: yesActa Palaeontologica Polonica, 2018
Post-Palaeozoic crinoids from northeast Spain ranging from the Ladinian (Middle Triassic) to the Ilerdian (lower Ypresian, early Eocene) are documented.
Samuel Zamora   +7 more
doaj  

Lower Aptian ammonite and carbon isotope stratigraphy in the eastern Prebetic Domain (Betic Cordillera, southeastern Spain)

open access: yesGeologica Acta, 2012
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
doaj  

Carbonate Stable Isotope Data Suggest Freshwater Environment for the McMurray Formation (Aptian), Alberta, Canada

open access: yesGeosciences
Stable isotope, trace element, and cathodoluminescence analyses were performed on gastropods and matrix from rock cores of the Middle to Upper McMurray Formation (Lower Cretaceous/Aptian, Northwestern Alberta, Canada) to characterize the extent to which ...
Franek Hasiuk   +4 more
doaj   +1 more source

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