Results 31 to 40 of about 16,093 (213)

Calcareous Nannofossils Biostratigraphy of Late Cretaceous–Paleocene Successions from Northern Jordan and Their Implications for Basin Analysis

Geosciences, 2023
Local geological and tectonic processes have been pivotal in shaping the diverse sedimentation patterns observed in Jordan, forming sub-basins characterized by elevated organic matter content (TOC). This study aims to characterize the Maastrichtian basin,
Albesher Hussein, Osama M. Al-Tarawneh, Mohammad Alqudah   +2 more
doaj   +1 more source

Distephanopsis concavus Horvat: a revised silicoflgellate species from the Middle Miocene of the Central Paratethys

Geologija, 2016
The silicoflgellate species Distephanopsis concavus Horvat is revised based on further research of the type material. This species is characterized by having a basal ring with strongly concave sides which reduce the basal ring area and by four symmetry
Aleksander Horvat
doaj   +1 more source

Biostratigraphy

, 1999
<null>
Berggren, William A., Norris, Richard D
openaire   +1 more source

Artificial intelligence models for quantitative biostratigraphy.

, 2001
Artificial intelligence models for quantitative ...
Tao. Zhang (7971983)
core   +6 more sources

Testing the stratigraphic consistency of Pleistocene microfossil bioevents identified on the Alpha and Lomonosov Ridges, Arctic Ocean

Arctic, Antarctic, and Alpine Research, 2021
Two different biostratigraphic approaches are used to identify Marine Isotope Stage 11 (MIS 11) in Arctic Ocean sediments. On the Lomonosov Ridge, globally calibrated nannofossil bioevents constrain the age of sediments back to MIS 13 (Core LOMROG12-3PC).
Flor Vermassen, Matt O’Regan, Gabriel West, Thomas M. Cronin, Helen K. Coxall   +4 more
doaj   +1 more source

STRATIGRAPHY OF THE LOWER OLIGOCENE NUMMULITIC LIMESTONES, NORTH OF SONQOR (NW IRAN)

Rivista Italiana di Paleontologia e Stratigrafia, 2018
The lower Oligocene hyaline and porcellaneous larger foraminifera of a carbonate platform setting, north of Sonqor, were studied for high-resolution biostratigraphy in the context of European standard zonation (Shallow Benthic Zones).
MOHSEN YAZDI-MOGHADAM, ABBAS SADEGHI, MOHAMMAD HOSSEIN ADABI, ALIREZA TAHMASBI   +3 more
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)

Bulletin of the Mineral Research and Exploration, 2021
Thanetian-early Ypresian (middle Ilerdian) limestones from the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey) contain rich benthic foraminiferal assemblage. Ilerdian beds of the Büyükkırtepe formation are characterized
Muhittin Görmüş, Alper Bozkurt
doaj   +1 more source

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

The Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe, Hallie P. Street‐Sampson, Takuya Konishi, Michael W. Caldwell   +3 more
wiley   +1 more source

Integration of new zircon U–Pb ages with biostratigraphy to establish a high-precision age model of the Miocene Nakayama Formation on Sado Island in Central Japan

Progress in Earth and Planetary Science
The most common age constraint for the diatomaceous sediments is biostratigraphy of siliceous microfossils. Although biostratigraphy is a powerful tool to establish stratigraphy and correlate with sedimentary sequences in other sites, biostratigraphy ...
Jumpei Yoshioka, Kenji M. Matsuzaki, Sota Niki, Junichiro Kuroda, Takafumi Hirata   +4 more
doaj   +1 more source