Results 11 to 20 of about 50 (50)

Conodont biostratigraphy of the Oandu Stage (Katian, Upper Ordovician) in NE Estonia

Estonian Journal of Earth Sciences, 2017
Conodonts from the type region of the Oandu Regional Stage (Katian, Upper Ordovician) in NE Estonia were studied. Here, the lower boundary of the stage corresponds to a discontinuity surface at the base of the Hirmuse Formation and, in conodont succession, is marked by the disappearance of Semiacontiodus sp. and Besselodus? sp.
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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).
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New Early Katian species of Leptestiidae and Hesperorthidae (Brachiopoda) from Lithuania

Estonian Journal of Earth Sciences, 2016
A new leptestiid brachiopod species of the genus Sampo and a hesperorthid species of the genus Dolerorthis are described from the Early Katian Oandu Stage of southern Lithuania. The new species Sampo suduvensis and Dolerorthis nadruvensis are common brachiopods for the Howellites wesenbergensis–Hedstroemina subaequiclina–Reushella magna community of ...
Paškevičius, Juozas, Hints, Linda
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Evaluation of the Preservation of Chitinozoans in a Case Study of the Katian?—Hirnantian Succession, Eastern Precordillera of Argentina

Fossil Studies
The poor preservation state of chitinozoans recovered from samples of the La Pola (Sandbian–Katian) and Don Braulio formations (Hirnantian-Llandovery), after being processed with standard methods, required significant modifications in processing. The sodium hexametaphosphate technique was used to avoid invasive mechanical procedures.
Jessica Gómez, Mercedes di Pasquo, Leonardo Silvestri   +2 more
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The trilobite assemblage of the Declivolithus Fauna (lower Katian, Ordovician) of Morocco: a review with new data

Journal of Paleontology
Abstract Intense commercial exploitation of fossils in the famous El Qaid Errami area in the last 20 years has led to the discovery of the interesting Declivolithus Fauna in the Moroccan Anti-Atlas.
Sofia Pereira, Isabel Rábano, Juan Carlos Gutiérrez-Marco   +2 more
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Odontopleurid trilobites of the Katian/Hirnantian boundary interval in the Prague Basin (Bohemia) [PDF]

Bulletin of Geosciences, 2014
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Upper Sandbian–lower Katian bio- and chemostratigraphy in the Pajevonys-13 core section, Lithuania

Estonian Journal of Earth Sciences, 2016
The succession of five formations (Auleliai, Vilučiai, Alvitas, Šakiai, Jakšiai) corresponding to the upper Sandbian and lower Katian in southern Lithuania is dated based on new bio- and chemostratigraphical data from the Pajevonys-13 core section. The dating of the Auleliai and Vilučiai formations is controversial: chitinozoans suggest younger ages ...
Hints, Linda, Paškevičius, Juozas, Martma, Tonu, Männik, Peep, Nõlvak, Jaak   +4 more
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An Upper Ordovician (Katian) trilobite fauna from the Lower Ktaoua Formation, Morocco [PDF]

Bulletin of Geosciences, 2017
R.A. Fortey, G.D. Edgecombe
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Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A. [PDF]

Bulletin of Geosciences, 2011
P. Štorch, C.E. Mitchell, S.C. Finney, M.J. Melchin   +3 more
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Conodont and graptolites from the Oberbuchach I and Oberbuchach Ib sections (Katian-Lochkovian)

, 2017
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Schönlaub, H. P., CORRADINI, CARLO
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