Results 71 to 80 of about 2,004 (204)

Chitinozoans from the Ordovician-Silurian Boundary Beds in the Eastern Cincinnati Region in Ohio and Kentucky [PDF]

open access: yes, 1985
Author Institution: Geological Survey of Sweden ; Department of Geology and Mineralogy, The Ohio State UniversityRepresentatives of seven species of chitinozoans, one of which is new (Ancyrochitina belfastensis n.
Bergstrom, Stig M., Grahn, Yngve
core  

Hulterstad brachiopods and associated faunas in the Vormsi Stage (Upper Ordovician, Katian) of the Lelle core, Central Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2007
Integrated palaeontological and sedimentological study of the Upper Ordovician Vormsi Stage in the Lelle drill core section, Central Estonia, revealed an association of shelly fauna containing the endemic saukrodictyid brachiopod Hulterstadia cor (Wiman),
Nõlvak, Jaak   +3 more
doaj  

Biostratigraphy and palaeogeography of lower Devonian Chitinozoans, from East and West Moesia, Romania [PDF]

open access: yes, 2005
The knowledge on the biostratigraphy of Moesia has been supplemented based on chitinozoan assemblages in two boreholes, one from East Moesia and the second one from West Moesia. Previous contributions on chitinozoans, acritarchs and miospores, using only
Vaida, M., Verniers, J.
core  

A new Middle Devonian chitinozoan assemblage from northern Iberia [PDF]

open access: yesReview of Palaeobotany and Palynology, 2019
Chitinozoans were recovered from the Naranco, Huergas and Gustalapiedra formations of northern Spain, which yielded a diverse assemblage including 29 taxa in 9 named genera. The deposits are of early Givetian age, a time when Iberia was isolated from large continents as part of the Armorican Terrane Assemblage.
Askew, A.J., Russell, E.
openaire   +1 more source

New evidence for the Hirnantian (Upper Ordovician) in Belgium? An integrated isotopical, biostratigraphic and sedimentologic approach

open access: yesCarnets de Géologie, 2005
The Hirnantian is an important time in Earth history as it includes one of the major episodes of continental glaciation and marine mass extinction (e.g. Brenchley et alii, 1994).
Grassineau Nathalie   +4 more
doaj  

Review of the lithostratigraphy of the Middle Ordovician to Llandovery of the Condroz inlier (Belgium) by chitinozoan biostratigraphy: does the sedimentary succesion records the Ardennian deformation? [PDF]

open access: yes, 2007
This paper reports on chitinozoans from the early Llanvirn (mid Darriwilian) Huy Formation found at three localities in the central Condroz Inlier: the Huy and Sart-Bernard railway sections and the Wépion borehole.
Vanmeirhaeghe, J.
core  

Katian (Upper Ordovician) conodonts from Wales [PDF]

open access: yes, 2013
Middle and upper Katian conodonts were previously known in the British Isles from relatively small collections obtained from a few localities. The present study is mainly based on 17 samples containing more than 17 000 conodont elements from an ...
An   +85 more
core   +1 more source

Biostratigraphy of Acritarchs and Chitinozoans in Ordovician Strata from the Fazel Abad Area, Southeastern Caspian Sea, Alborz Mountains, Northern Iran: Stratigraphic Implications [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2017
Sixty-four surface samples from the Lower Palaeozoic rock units (mainly Lalun,Abastu and Abarsaj formations) near Kholin-Darreh village in the Fazel Abad area,southeastern the Caspian Sea, Northern Iran, were analyzed to determine their agerelationships.
M. Ghavidel-syooki
doaj  

Correlation of the 83w421 Kortrijk (Sint-Antonius) and 83w44 Kortrijk (Lust) boreholes with acritarchs (late Aeronian-early Telychian, Silurian, Belgium) [PDF]

open access: yes, 2006
25 samples from the 83W421 Kortrijk (Sint-Antonius) and 83W44 Kortrijk (Lust) boreholes are investigated. Acritarchs provide a more reliable and precise correlation of these two boreholes than graptolites and chitinozoans because of large barren and/or ...
Wauthoz, B.
core  

Опыт участия в международном летнем кампусе РАНХиГС 2017 [PDF]

open access: yes, 2007
Extraordinarily well-preserved chitinozoans from an Upper Silurian sedimentary sequence in south-east Turkey were recovered from different depth levels, hand-picked from the palynological residue, cleaned and analysed by micro-FTIR and Curie point ...
BROCKE, R   +5 more
core   +2 more sources

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