Results 51 to 60 of about 7,296 (255)

Late Valanginian extinction and turnover of Tethyan brachiopods: A signal of the Weissert Event (Bakony Mountains, Hungary)

, 2020
Brachiopods, together with ammonoids, were collected bed-by-bed from several Lower Cretaceous pelagic sections and localities in the Bakony Mountains (Transdanubian Range, Hungary), dated by detailed ammonoid and nannofossil biostratigraphy.
A. Vörös, I. Főzy, A. Dulai, O. Szives   +3 more
semanticscholar   +1 more source

A new coral family and three new genera from the Lower Cretaceous of Puebla and Sonora (Scleractinia; Mexico)

Revista Mexicana de Ciencias Geológicas, 2022
Solitary corals currently assigned to the genus Plesiosmilia are common elements in Late Jurassic to Early Cretaceous coral faunas. The genus itself is poorly defined and its systematic position is questionable.
Hannes Löser
doaj   +1 more source

Biostratigraphy and paleoecology of the Lower Cretaceous sediments in the Outer Western Carpathians (Silesian Unit, Czech Republic) [PDF]

, 2011
Almost black shale filling fissures in the Štramberk Limestone belonging to the Silesian Unit, Outer Western Carpathians contain prolific and poorly to moderately well preserved spores, pollen, organic-walled dinoflagellate cysts, foraminifers, and ...
Hradecká, Lenka, Skupien, Petr, Svobodova, Marcela, Švábenická, Lilian   +3 more
core   +1 more source

Fish remains from the Lower Cretaceous (Valanginian-Hauterivian) of Hárskút (Hungary, Bakony Mts) [PDF]

, 2017
Lower Cretaceous (Valanginian-Hauterivian) fish remains, collected in the Közöskút Ravine (nearby Hárskút, Hungary) in the 1960s are detailed here. Although the material is poorly preserved, it is of great importance, because this geographical region and
Szabó, Márton
core   +1 more source

Ontogeny and variability in ribbing of Late Valanginian lamellaptychi (Ammonitina)

Annales Societatis Geologorum Poloniae, 2016
Late Valanginian (Early Cretaceous) lamellaptychi of the genus Mortilletilamellaptychus were collected from seven ammonite-controlled sections in south-eastern France demonstrate distinct changes in ribbing during growth. Simpler juvenile ribbing, which is essentially uniform for all of the specimens studied, differs distinctly from the complicated ...
Vašíček, Z. (Zdeněk), Klein, J., Janssen, N. M. M.   +2 more
openaire   +3 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

A Turiasaurian (Dinosauria, Sauropoda) Tooth from the Pliensbachian Hasle Formation of Bornholm, Denmark, Shows an Early Jurassic Origin of the Turiasauria

Diversity, 2023
Turiasauria is a clade of basal sauropod dinosaurs hitherto only known from the Middle Jurassic (Bathonian) to the Lower Cretaceous (Valanginian). A new find of a shed tooth crown from the Lower Jurassic (Pliensbachian), Halse Formation of Bornholm ...
Jesper Milàn, Octávio Mateus
doaj   +1 more source

Diversification of the Neoselachii (Chondrichthyes) during the Jurassic and Cretaceous [PDF]

, 2006
The Neoselachii are a monophyletic group including all of the extant sharks and rays. They underwent rapid diversification throughout the Jurassic and Cretaceous, going from low-diversity assemblages of members of extinct orders in the Late Triassic to ...
Underwood, Charlie J.
core   +1 more source

Proposals for the stratigraphic positions of the Berriasian - Valanginian and the Valanginian Hauterivian boundaries

Bulletin of the Geological Society of Denmark, 1984
In two previous papers (Hoedemaeker, 1982, 1983) the author proposed to draw the boundary between the Berriasian and the Valanginian at the base of the TimoveUa alpiUensis Subzone, which he described from SE Spain. The correlation of this subzone with the published French zonation is however problema­tic, because the fauna) association of the ...
openaire   +1 more source

Paleoenvironments of Berriasian–lower Hauterivian deposits in the Western Neotethys: Late development, demise and drowning of the Slivnitsa carbonate platform (Western Bulgaria)

Evolving Earth
Sedimentological and biostratigraphic results are used to interpret the Early Cretaceous history of the newly named Slivnitsa carbonate platform which existed on the northern Neotethyan margin.
Athanas Chatalov, Daria Ivanova
doaj   +1 more source