Results 81 to 90 of about 2,451 (206)

Upper Jurassic–Lower Cretaceous Incertae Sedis Organisms from Mirdita Zone, Albania

Albanian Journal of Natural and Technical Sciences
Incertae sedis, also referred to as microproblematica, are organisms with an uncertain systematic position. In micropaleontological studies—particularly those focused on paleoenvironmental research or bathymetric zoning of marine environments—these ...
Andreea Uta, Bardhyl Muceku, Alaudin Kodra   +2 more
doaj   +1 more source

Paguroid anomurans from the upper Tithonian–lower Berriasian of Štramberk, Moravia (Czech Republic)

Geologija, 2020
Subsequent to a preliminary report on a handful of paguroid remains from the Tithonian (uppermost Jurassic) to lower Berriasian (Lower Cretaceous) Štramberk Limestone in Moravia (eastern Czech Republic), published in 2013, several field campaigns were ...
René H.B. FRAAIJE, Barry W.M. VAN BAKEL, John W.M. JAGT, Petr SKUPIEN   +3 more
doaj   +1 more source

Developments with fixing a Tithonian/Berriasian (J/K) boundary

Volumina Jurassica, 2017
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openaire   +1 more source

Osteology and Taxonomy of British Wealden Supergroup (Berriasian–aptian) Ankylosaurs (Ornithischia, Ankylosauria)

Journal of Vertebrate Paleontology, 2020
Ankylosaurs, dinosaurs possessing extensive body armor, were significant components of terrestrial ecosystems from the Middle Jurassic–latest Cretaceous. They diversified during the Early Cretaceous, becoming globally widespread. The Lower Cretaceous Wealden Supergroup (Berriasian–Aptian) of Britain has produced abundant ankylosaur material, with three
Thomas J. Raven, Paul M. Barrett, Stuart B. Pond, Susannah C. R. Maidment   +3 more
openaire   +1 more source

Post‐Eocene 90° CCW Rotation of Sardinia‐South Corsica: Paleomagnetic Evidence From Permian‐Cretaceous Sediments of Nurra (NW Sardinia)

Tectonics, Volume 45, Issue 5, May 2026.
Abstract The paleomagnetism of Miocene calc‐alkaline volcanics and sediments from Sardinia has firmly showed that the Corsica‐Sardinia microplate rotated 50°–60° counterclockwise (CCW) with respect to Europe between 21 and 15 Ma, during its drift from the Provencal margin. However, Permian to Eocene rocks from central‐south Sardinia revealed higher (up
Gaia Siravo, Fabio Speranza, Giacomo Oggiano, Lilla Spagnuolo   +3 more
wiley   +1 more source

A deep dive into the fossil record of diving beetles (Coleoptera: Dytiscidae): Bayesian inferences elucidate their origin and pulsed diversification at the genus level

Palaeontology, Volume 69, Issue 3, 2026.
Abstract Predaceous diving beetles (Dytiscidae) are among the best‐known and most extensively studied beetle clades. Their fossil record, however, remains surprisingly sparse and uneven, failing to reflect their broad extant diversity. Consequently, the study of their evolutionary history, leveraging the fossil record, particularly their ...
Jules Ferreira, Corentin Jouault, Fabien L. Condamine, David Peris   +3 more
wiley   +1 more source

The lower and middle Berriasian in Central Tunisia: Integrated ammonite and calpionellid biostratigraphy of the Sidi Kralif Formation [PDF]

, 2016
The lower and middle Berriasian sedimentary succession of the Sidi Kralif Formation has been a subject of biostratigraphic study in two key sections in Central Tunisia.
Maalaoui, K., Zargouni, F.
core   +1 more source

CRETACEOUS PALYNOLOGY (SPORES, POLLEN AND DINOFLAGELLATE CYSTS) OF THE SIQEIFA 1-X BOREHOLE, NORTHERN EGYPT

Rivista Italiana di Paleontologia e Stratigrafia, 2007
Diverse and well preserved palynofloras were recognized in the Lower Cretaceous succession penetrated by well Siqeifa 1-X in northern Egypt. Dinoflagellate cysts such as Subtilisphaera senegalensis was regarded, with the spores Impardecispora ...
MAGDY S. MAHMOUD, AMR S. DEAF
doaj   +1 more source

Paleoenvironmental evolution of the southern Neuquèn basin (Argentina) during the Tithonian-Berriasian (Vaca Muerta and Picún Leufú Formations): a multi-proxy approach

BSGF - Earth Sciences Bulletin, 2017
The Tithonian-Berriasian interval in the southern part of the Neuquén Basin is represented by the Vaca Muerta and the Picún Leufú Formations. Facies analysis and correlation of the Vaca Muerta Formation and the lower part of the Picún Leufú Formation in ...
Krim Nesma, Bonnel Cédric, Tribovillard Nicolas, Imbert Patrice, Aubourg Charles, Riboulleau Armelle, Bout-Roumazeilles Viviane, Hoareau Guilhem, Fasentieux Bertrand   +8 more
doaj   +1 more source

The Jurassic/Cretaceous boundary and high resolution biostratigraphy of the pelagic sequences of the kurovice section (Outer Western Carpathians, the northern Tethyan margin)

Geologica Carpathica, 2019
Microfacies and high resolution studies at the Kurovice quarry (Czech Republic, Outer Western Carpathians) on calpionellids, calcareous and non-calcareous dinoflagellate cysts, sporomorphs and calcareous nannofossils, aligned with paleomagnetism, allow ...
Svobodová Andrea, Švábenická Lilian, Reháková Daniela, Svobodová Marcela, Skupien Petr, Elbra Tiiu, Schnabl Petr   +6 more
doaj   +1 more source