Results 81 to 90 of about 1,129 (198)

Pecularities of the lithology and fauna of the early Katian (Ordovician) in the Lithuanian facies zone

Geologija. Geografija, 2016
The lithology and fauna on the south-eastern slope of the Middle Lithuanian Depression within the  Lithuanian facies zone (belt) is discussed in the  present paper. The study material consists of core from two deep drill-holes: Taučionys-49 and Drūkšiai-6 (Kazimirovo).
openaire   +2 more sources

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

Journal 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  

Data from: Katian (Late Ordovician) trilobites of the North Qilian Mountains and their palaeogeographical implications for the Proto-Tethys Archipelagic Ocean (PTAO)

, 2023
<p class="MsoNormal"><span>Trilobites from the middle Koumenzi Formation (Katian, Upper Ordovician) of the North Qilian Mountains, Menyuan, northeastern Qinghai Province are systematically documented for the first time.
Yan, Guanzhou, Zhan, Renbin, Wei, Xin, Luan, Xiaocong, Zhang, Yuchen   +4 more
core   +1 more source

First record of ostracods from the Upper Ordovician red-coloured marine sandstones of the Tierekeawati Formation in Tarim Basin, NW China: implications on palaeoenvironment and palaeobiogeography

Journal of Palaeogeography, 2020
Ostracods are described for the first time from the red-coloured marine sandstones of Arisu section (Arisu red beds) of the Upper Ordovician Tierekeawati Formation in Kalpin area of northwestern Tarim Basin, Xinjiang Uygur Autonomous Region (Xinjiang ...
Jun-Jun Song, Yi-Xin Shen, Peng Tang, Xiao-Le Zhang, Qi-Jian Li, Zheng-Jiang Luo   +5 more
doaj   +1 more source

Katian volcanism in Central Armorican Domain (France) and Central Iberian Zone (Portugal): a single monogenetic basaltic field?

, 2022
The Crozon peninsula and Buçaco syncline belong respectively to the Central Armorican Domain (CAD) and the Central Iberian Zone (CIZ), located on both sides of the Variscan “Ibero-Armorican Arc” structure at present.
Martial Caroff, Caroff, Martial
core   +1 more source

[Retracted] The taphonomy of a trilobite fauna from an uppermost Katian echinoderm Lagerstätte in South West Wales

, 2018
The uppermost Katian (Rawtheyan) Slade and Redhill Mudstone Formation, in the Llanddowror area of Carmarthenshire in South West Wales, contains an horizon yielding abundant, articulated crinoids, cystoids, mitrate ‘carpoids’, asteroids and ophiuroids ...
make_name_string expected hash reference, Patrick D. McDermott, Lucy M. E. McCobb, Alan W. Owen   +3 more
core   +2 more sources

Lower Katian (Upper Ordovician) delta(13)C chemostratigraphy, global correlation and sea-level changes in Baltoscandia

, 2011
A long-standing problem in the Ordovician stratigraphy of south-eastern Norway has been to the relations between the Mjosa Formation in the Lake Mjosa region and coeval strata in the Oslo region.
Bruton, David L., David L. Bruton, Bergstroem, Stig M., Birger Schmitz, Schmitz, Birger, Stig M. Bergström, Seth A. Young, Young, Seth A.   +7 more
core   +1 more source

The taphonomy of a trilobite fauna from an uppermost Katian echinoderm Lagerstätte in South West Wales

, 2019
Summary: The uppermost Katian (Rawtheyan) Slade and Redhill Mudstone Formation, in the Llanddowror area of Carmarthenshire in South West Wales, contains an horizon yielding abundant, articulated crinoids, cystoids, mitrate ‘carpoids’, asteroids and ...
Patrick D. Mcdermott, Owen, Alan W., Mccobb, Lucy M. E., Lucy M. E. Mccobb, Mcdermott, Patrick D., Alan W. Owen   +5 more
core   +1 more source

Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India [PDF]

Acta Palaeontologica Polonica
The end of the Ordovician witnessed major perturbations in the ecosystem, seriously affecting global marine biodiversity. Nevertheless, some marine organism groups and their crisis-bound palaeogeographic distribution are still understudied.
PETRA TONAROVÁ, THOMAS J. SUTTNER, OLLE HINTS, YAN LIANG, MAREK ZEMEK, MICHAL KUBAJKO, TOMÁŠ ZIKMUND, JOZEF KAISER, ERIKA KIDO   +8 more
doaj   +1 more source

Data from: An echinoderm Lagerstätte from the Upper Ordovician (Katian), Ontario: taxonomic re-evaluation and description of new dicyclic camerate crinoids

, 2017
The Upper Ordovician (lower Katian) Bobcaygeon and Verulam formations from the Lake Simcoe region of Ontario contain a highly diverse echinoderm assemblage that is herein recognized as a Konservat-Lagerstätte.
Cole, Selina R., Wright, David F., William I. Ausich, Selina R. Cole, Ausich, William I., Koniecki, Joseph M., David F. Wright, Joseph M. Koniecki   +7 more
core   +1 more source