Results 21 to 30 of about 35,895 (262)

First record of the Ordovician fauna in Mila-Kuh, eastern Alborz, northern Iran [PDF]

open access: yesEstonian Journal of Earth Sciences, 2015
Restudy of the Cambrian–Ordovician boundary beds, traditionally assigned to the Mila Formation Member 5 in Mila-Kuh, northern Iran, for the first time provides convincing evidence of the Early Ordovician (Tremadocian) age of the uppermost part of the ...
Mohammad-Reza Kebria-ee Zadeh   +4 more
doaj   +1 more source

Biostratigraphy and Palaeoecology of European Equus [PDF]

open access: yesFrontiers in Ecology and Evolution, 2019
We present an inventory of the progress of recent research on the biostratigraphy and palaeoecology of the genus Equus sensu lato in Europe. Our discussion starts with the new hypotheses concerning the dispersal and evolution of non-caballine equids of the Early and the beginning of the Middle Pleistocene, focusing on recent discoveries, description of
Nicolas Boulbes   +2 more
openaire   +3 more sources

Biostratigraphy, sedimentology and paleoenvironments of the northern Danube Basin: Ratkovce 1 well case study

open access: yesGeologica Carpathica, 2015
The Ratkovce 1 well, drilled in the Blatné depocenter of the northern Danube Basin penetrated the Miocene sedimentary record with a total thickness of 2000 m.
Rybár Samuel   +6 more
doaj   +1 more source

New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of Baltoscandia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2015
Three new chitinozoan species, Conochitina savalaensis, Conochitina viruana and Belonechitina intonsa, are described. All these species are stratigraphically restricted to the Kukruse age (lowermost Sandbian, Laufeldochitina stentor chitinozoan Zone) and
Jaak Nõlvak, Garmen Bauert
doaj   +1 more source

The stratigraphical distribution of Mid-Cretaceous foraminifera near Ventor, Isle of Wight [PDF]

open access: yes, 2011
Ventnor No. 2 Borehole, located near Ventnor, Isle of Wight, penetrated the basal part of the Chalk Group and the Selborne Group before terminating in the upper part of the Lower Greensand Group (Sandrock Formation).
Hopson, Peter M., Wilkinson, Ian P.
core   +1 more source

Conodont biostratigraphy of the Crawford Group, Southern Uplands, Scotland [PDF]

open access: yes, 2002
Extensive new conodont collections from the Crawford Group, the oldest succession in the Southern Uplands of Scotland, support the previously documented biostratigraphical ages for the included formations.
Armstrong, Howard A.   +3 more
core   +1 more source

High resolution carbon isotope stratigraphy of the basal Silurian stratotype (Dob's Linn, Scotland) and its global correlation [PDF]

open access: yes, 1997
Since its designation as the Global Stratotype Section and Point (GSSP) for the base of the Silurian System, the choice of Dob's Linn, Southern Scotland, has received criticism due to the difficulties of relating its well constrained graptolite ...
Brenchley, P.J.   +3 more
core   +1 more source

Testing the stratigraphic consistency of Pleistocene microfossil bioevents identified on the Alpha and Lomonosov Ridges, Arctic Ocean

open access: yesArctic, Antarctic, and Alpine Research, 2021
Two different biostratigraphic approaches are used to identify Marine Isotope Stage 11 (MIS 11) in Arctic Ocean sediments. On the Lomonosov Ridge, globally calibrated nannofossil bioevents constrain the age of sediments back to MIS 13 (Core LOMROG12-3PC).
Flor Vermassen   +4 more
doaj   +1 more source

Intercalibration of Boreal and Tethyan timescales: the magneto-biostratigraphy of the Middle Triassic and the latest Early Triassic from Spitsbergen, Arctic Norway [PDF]

open access: yes, 2008
An integrated bio-magnetostratigraphic study of the latest Early Triassic to the upper parts of the Middle Triassic, at Milne Edwardsfjellet in central Spitsbergen, Svalbard, allows a detailed correlation of Boreal and Tethyan biostratigraphies.
Hounslow, Mark W.   +6 more
core   +1 more source

Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania:a standard for southern Scandinavia [PDF]

open access: yes, 2014
The Rostanga-1 core from west-central Scania provides the most complete succession of the Sandbian (Upper Ordovician) through lower Telychian (Silurian, Llandovery) strata of southern Scandinavia. The Hirnantian is identified in the Kallholn Formation by
Ahlberg, Per   +3 more
core   +2 more sources

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