Results 51 to 60 of about 29,214 (295)

Taxonomy of Platypterygius campylodon and the diversity of the last ichthyosaurs [PDF]

open access: yesPeerJ, 2016
A complex and confusing taxonomy has concealed the diversity dynamics of Cretaceous ichthyosaurs (Reptilia) for decades. The near totality of Albian-Cenomanian remains from Eurasia has been assigned, by default, to the loosely defined entity ...
Valentin Fischer
doaj   +2 more sources

Osteology and relationships of Rhinopycnodus gabriellae gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon [PDF]

open access: yes, 2013
The osteology of Rhinopycnodus gabriellae gen. and sp. nov., a pycnodontiform fish from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail.
Capasso, Luigi, Taverne, Louis
core   +3 more sources

LE RELAZIONI TRA LE ARENARIE DI SARNICO (CONIACIANO) E LE UNITA' CENOMANIANO-TURONIANE NELL'AREA DI CAPRIOLO - CORNO PENDITA (BS) (BACINO LOMBARDO, ALPI MERIDIONALI)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
The Cenomanian-Coniacian units of the Capriolo - Corno Pendita area belong to the eastern margin of the Lombardy Basin. The Coniacian turbidite sandstone lithosome (Arenarie di Sarnico) unconformably overlies the Cenomanian-Turonian units.
R. BERSEZIO, L. MENSINI
doaj   +1 more source

Cenomanian ammonites from northern aquitaine

open access: yesCretaceous Research, 1983
Ammonites from the Cenomanian of northern Aquitaine include Neolobites vibrayeanus (d'Orbigny, 1841), Calycoceras (Calycoceras) naviculare (Mantell, 1822) , C. cenomanense (d'Archiac, 1846) , Pseudocalycoceras cf. dentonense (Moreman, 1942) , Eucalycoceras sp., Acanthoceras (Acanthoceras) pseudorenevieri (Spath, 1926) , A.
Moreau, P, Francis, I, Kennedy, W
openaire   +2 more sources

Larger Foraminifera of Middle and Late Cenomanian (Biostrome Association), Southern Iraq

open access: yesIraqi Geological Journal, 2023
Searching one of the most important reservoirs of the Cretaceous in Iraq is the aim of many researchers. The studied sequences are in the Mishrif Formation in southern Iraq. The goal is to define fauna and design biostratigraphic zoning.
Abdelwahhab Al-Salihi, Yasamin Ibrahim
doaj   +1 more source

Carbon Isotopic Signature and Organic Matter Composition of Cenomanian High-Latitude Paleosols of Southern Patagonia

open access: yesGeosciences, 2021
The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (~55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document Cenomanian environments at high ...
Augusto Nicolás Varela   +5 more
doaj   +1 more source

The first record of Scheenstia (Actinopterygii, Holostei) from the Late Cretaceous of Ukraine in the context of European occurrence of Mesozoic lepisosteiform fishes

open access: yesGeo&Bio, 2019
Lepisosteiform fishes are represented in the fossil record of Europe from the Late Jurassic until the Miocene. Most of their remains were found in the western and central parts of the continent.
L. S. Kyselevych, O. M. Kovalchuk
doaj   +1 more source

Improving the efficiency of gas fields development using an interlayer gas flow from Turonian to Cenomanian reservoirs

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2023
There is currently a significant depletion of Cenomanian gas reserves in Western Siberia, which have been the basis of Russian gas exports. This raises the challenge of developing reserves that could offset these volumes, such as hard-to-recover gas ...
A. Yu. Yushkov   +4 more
doaj   +1 more source

BIOSTRATIGRAPHY AND DEPOSITIONAL ENVIRONMENT OF THE OIL SHALE DEPOSIT IN THE ABAKALIKI FOLD BELT, SOUTHEASTERN NIGERIA; pp. 99–125 [PDF]

open access: yesOil Shale, 2010
The oil shale deposit in the Abakaliki anticlinorium has not been demarcated. The present study focused on the age, correlation and depositional environ­ment of the oil shale using abundance, planktonic/benthonic ratio and species diversity of ...
O. A. EHINOLA
doaj   +1 more source

Valanginian to Barremian Benthic Foraminifera from ODP Site 766 (Leg 123, Indian Ocean) [PDF]

open access: yes, 1995
A Valanginian to Barremian bathyal foraminiferal assemblage (118 taxa belonging to 51 genera) is documented from ODP Site 766, drilled near the foot of the Exmouth Plateau off northwest Australia.
Holbourn, A.E.L., Kaminski, M.A.
core   +1 more source

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