Results 61 to 70 of about 6,971 (210)

The mystery of Mystriosaurus: Redescribing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus brevior [PDF]

Acta Palaeontologica Polonica, 2019
The genus Mystriosaurus, established by Kaup in 1834, was one of the first thalattosuchian genera to be named. The holotype, an incomplete skull from the lower Toarcian Posidonienschiefer Formation of Altdorf (Bavaria, southern Germany), is poorly known ...
Sven Sachs, Michela M. Johnson, Mark T. Young, Pascal Abel   +3 more
doaj   +1 more source

Sinemurian-Pliensbachian boundary event (Early Jurassic): Current status and future challenges

地质科技通报, 2023
The Lower Jurassic is composed of the Hettangian, Sinemurian, Pliensbachian and Toarcian, among which the Toarcian oceanic anoxic events (T-OAE) have been widely studied. Depositions of black shales and negative excursions of both δ13Corg and δ13Ccarb at
Yu Ge, Zhiqiang Shi
doaj   +1 more source

The First 40 Million Years of Planktonic Foraminifera

Geosciences, 2021
We provide a biochronology of Jurassic planktonic foramininfera, using first order linkage to ammonite and nannofossil stratigraphy and geochronology. This enigmatic and understudied group of microfossils occurred from middle Toarcian through Tithonian ...
Felix Gradstein, Anna Waskowska, Larisa Glinskikh   +2 more
doaj   +1 more source

Strontium isotope stratigraphy: LOWESS version 3: best fit to the marine Sr-isotope curve for 0-509 Ma and accompanying look-up table for deriving numerical age [PDF]

, 2001
An improved and updated version of the statistical LOWESS fit to the marine 87Sr/86Sr record and a revised look-up table (V3:10/99; available from j.mcarthur@ucl.ac.uk) based upon it enables straightforward conversion of 87Sr/86Sr to numerical age, and ...
Bailey, T.R., Howarth, R.J., McArthur, J.M.   +2 more
core  

Emplacement of inflated Pāhoehoe flows in the Naude’s Nek Pass, Lesotho remnant, Karoo continental flood basalt province: use of flow-lobe tumuli in understanding flood basalt emplacement [PDF]

, 2018
Physical volcanological features are presented for a 710-m-thick section, of the Naude’s Nek Pass, within the lower part of the Lesotho remnant of the Karoo Large Igneous Province.
A Saunders, AE Jay, Anne E. Jay, BE Lock, BL Waichel, CP Rajendran, F Goff, F Holzförster, F Jourdan, Frédéric Fluteau, GPL Walker, GPL Walker, GPL Walker, H Hachimi El, H Svensen, HB Mattsson, HC Sheth, JD Greenough, JE Beane, JS Marsh, JSV Zijl van, Julian S. Marsh, K Burke, KA Hon, KB Knight, KG Cox, KG Cox, LG Viereck, M McClintock, M McClintock, M Moulin, M Moulin, ME Hartley, MJ Rossi, MK Reichow, MRG Sayyed, NR Bondre, NR Bondre, P-SS Ross, PB Wignall, PB Wignall, R Ernst, RA Duncan, RA Duraiswami, RA Duraiswami, RA Duraiswami, RA Duraiswami, RMH Smith, S Self, S Self, SE Bryan, SR Passey, SS Deshmukh, SW Anderson, T Thordarson, VE Camp, Vincent Courtillot, W Rogan   +57 more
core   +5 more sources

Stenopterygiids from the lower Toarcian of Beaujolais and a chemostratigraphic context for ichthyosaur preservation during the Toarcian Oceanic Anoxic Event Running header: Toarcian ichthyosaurs and the T-OAE

, 2021
We report new ichthyosaur material excavated in lower Toarcian levels of the LafargeHolcim Val d'Azergues quarry in Beaujolais, SE France. A partially articulated skull and a smaller, unprepared but likely subcomplete skeleton preserved in a carbonate concretion are identified as stenopterygiids, a family of wide European distribution during the Early ...
Martin, Jérémy, Suan, Guillaume, Suchéras-Marx, Baptiste, Rulleau, Louis, Schlögl, Jan, Janneau, Kevin, Williams, Matt, Léna, Alex, Grosjean, Anne-Sabine, Sarroca, Estel, Perrier, Vincent, Fernandez, Vincent, Charruault, Anne-Lise, Maxwell, Erin, Vincent, Peggy   +14 more
openaire   +2 more sources

A pterosaur from the Toarcian (Early Jurassic) of the Ardennes (northeastern France) [Un ptérosaure dans le Toarcien (Jurassique inférieur) des Ardennes (NE de la France)]

Carnets de Géologie, 2010
A pterosaur tibia-fibula is described from Toarcian shales ("Marne de Flize") near the city of Charleville-Mézières (Ardennes, northeastern France). The morphology of this element, especially the reduced fibula partially fused to the tibia, suggests that
Buffetaut Eric, Gibout Bernard, Drouin Danielle   +2 more
doaj  

Coring the sedimentary expression of the early Toarcian Oceanic Anoxic Event: new stratigraphic records from the Tethys Ocean [PDF]

Scientific Drilling, 2019
The Toarcian Oceanic Anoxic Event (T-OAE) interval was cored at Colle di Sogno and Gajum in the Lombardy Basin (Southern Alps, northern Italy). The Sogno and Gajum cores recovered 26.83 and 31.18 stratigraphic metres, respectively, of pelagic sediments ...
E. Erba, G. Gambacorta, S. Visentin, L. Cavalheiro, D. Reolon, G. Faucher, M. Pegoraro   +6 more
doaj   +1 more source

Brachiopod faunal exchange through an epioceanic-epicontinental transitional area from the Early Jurassic South Iberian platform system [PDF]

, 2016
The La Mola region (eastern External Betic Zone) can be regarded as one of the easternmost complete Jurassic successions of the Betic Cordillera in the Iberian Peninsula, but the paleogeographical setting of their outcrops remains widely discussed ...
Baeza Carratalá, José Francisco, García Joral, Fernando, Tent-Manclus, Jose Enrique   +2 more
core   +3 more sources

The palaeogeographic outlines of the Caucasus in the Jurassic: The Caucasian Sea and the Neotethys Ocean [PDF]

Geološki Anali Balkanskoga Poluostrva, 2006
The Caucasian Sea, fringing the northern margin of the Jurassic Neotethys Ocean, largely covered the Caucasus. Continental, shallow-marine and deep-marine palaeoenvironments delineate palaeogeographic outlines for three significant time slices: the Late ...
Ruban Dmitry A.
doaj   +1 more source