Results 11 to 20 of about 1,865 (81)

Shark and ray teeth from the Hauterivian (Lower Cretaceous) of north-east England [PDF]

open access: yes, 1999
Sampling of hiatal horizons within the Hauterivian part of the Speeton Clay Formation of north-east England has produced teeth of several species of sharks and rays, four of which are previously unnamed.
Veltkamp, K.J.   +2 more
core   +7 more sources

Isotopic evidence for temperature variation during the early Cretaceous (late Ryazanian-mid-Hauterivian) [PDF]

open access: yes, 2000
Oxygen and carbon isotopic compositions have been determined from the belemnite genera Acroteuthis and Hibolites sampled from the early Cretaceous (Ryazanian-Hauterivian) interval of the Speeton Clay Formation, Filey Bay, England.
Kalin, R.M.   +4 more
core   +3 more sources

Biostratigraphical study of Lower Cretaceous Kašajina river beds and its importance for geology of NE Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2002
This article presents results of detailed palynological study in the Lower Cretaceous Kašajina River Beds (Klokočevac, NE Serbia) and its importance for the geology of NE Serbia.
Ercegovac Marko   +2 more
doaj   +1 more source

Lithocodium and Bacinella signature of a late Hauterivian, local microbial event: the Urgonian limestone in South-East France

open access: yesGeologia Croatica, 2008
Sediment binding crusts of Lithocodium aggregatum and associated Bacinella irregularis abound in a shallow water limestone layer, in South-East France.
Marc A. Conrad, Bernard Clavel
doaj   +1 more source

Ostracods and Biostratigraphy of Sarmord Formation (Lower Cretaceous), Surdash Anticline, Sulaimani, Kurdistan Province, North of Iraq

open access: yesIraqi Geological Journal, 2023
A detiled systematic study of ostracods fauna in outcropped section of Sarmord Formation (Hauterivian -Barremian) in Surdash Anticline allows to detect 28 species belong to 16 genera.
Omran Hawramy   +3 more
doaj   +1 more source

Osmium isotopic data of Hauterivian carbonate samples obtained from Fiume Bosso section, central Italy

open access: yes, 2021
Data sets include the osmium and carbon isotopic information of the limestone samples collected from the Fiume Bosso section (43°31'07.2N 12°34'15.4E), central Italy.
Matsumoto, Hironao   +3 more
core   +1 more source

Carbon isotopic data of Hauterivian carbonate samples obtained from Fiume Bosso section, central Italy

open access: yes, 2021
Data sets include the osmium and carbon isotopic information of the limestone samples collected from the Fiume Bosso section (43°31'07.2N 12°34'15.4E), central Italy.
Matsumoto, Hironao   +3 more
core   +1 more source

Eocene Limestones Overlying Lower Cretaceous Deposits of Western lstria (Croatia): Did Some Parts of Present lstria Form Land During the Cretaceous?

open access: yesGeologia Croatica, 2010
In the region of the western Istrian anticline, erosional remains of the transgressive Eocene Foraminiferal limestones overly shallow waterdeposits of Early Cretaceous age (Valanginian, Hauterivian andBarremian).
Dubravko Matičec   +3 more
doaj   +1 more source

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

open access: yesRevista 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

New insights on the Early Cretaceous (Hauterivian–Barremian) Urgonian lithostratigraphic units in the Jura Mountains (France and Switzerland): the Gorges de l’Orbe and the Rocher des Hirondelles formations

open access: yesSwiss Journal of Geosciences, 2021
The Hauterivian–Barremian series of the Jura Mountains were measured over more than 60 sections along a 200 km long transect between Aix-les-Bains (Savoie Department, France) and Bienne (Bern Canton, Switzerland), which prompted the need for a revision ...
Antoine Pictet
doaj   +1 more source

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