Results 21 to 30 of about 50 (50)
Graptolites of the Králův Dvůr Formation (mid Katian to earliest Hirnantian, Czech Republic) [PDF]
Bulletin of Geosciences, 2015 P. Kraft, P. Štorch, C.E. Mitchell
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, 2016 Updated conodont stratigraphy in the Lower Palaeozoic of the Carnic ...
SCHÖNLAUB, Hans Peter +3 more
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The upper Katian (Ordovician) bryozoans from the Eastern Iberian Chain (NE Spain) [PDF]
Bulletin of Geosciences, 2009 openaire +1 more source
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Katian (Late Ordovician) conodonts on the northwestern margin of the North China Craton
Journal of Paleontology, 2021AbstractUpper Ordovician strata exposed from the Baiyanhuashan section is the most representative Late Ordovician unit in the northwestern margin of the North China Craton (NCC). In total, 1,215 conodont specimens were obtained from 24 samples through the Wulanhudong and Baiyanhuashan formations at the Baiyanhuashan section.
Zhihua Yang +6 more
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Bryozoan fauna of the Upper Ordovician (Katian) of Alnif, Morocco
Palaeobiodiversity and Palaeoenvironments, 2015Bryozoan fauna was discovered within the glaciogenic sediments of an Ordovician (Hirnantian) tunnel valley infill near Alnif, Morocco where it had been redeposited from the upper Tiouririne Formation (Ktaoa Group, Katian). This fauna contains four species—one esthonioporine, two trepostomes and one rhabdomesine cryptostome—of which three are new ...
Andrej Ernst +2 more
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The oldest heliolitids from the early Katian of the East Baltic region
GFF, 2012The earliest heliolitids appeared more or less simultaneously in the Late Ordovician shallow seas of different palaeocontinents. In this paper the early Katian heliolitids, represented by the genus Protaraea, are described from the East Baltic region (North Estonia and north-west Russia) and discussed in detail for the first time.
Mari-Ann Mõtus, Yury Zaika
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Katian prelude to the Hirnantian (Late Ordovician) mass extinction: a Baltic perspective
Geological Journal, 2011AbstractThe diversity of several groups of Late Ordovician fossils in the Baltic is discussed and corresponding curves are presented. The curves are correlated with the latest δ13C trend and probable sea surface temperatures of the equatorial ocean in order to link biodiversity and environmental changes.
Dimitri Kaljo +5 more
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Late Ordovician (Katian) linguliform microbrachiopods from north‐eastern Yunnan, South China
Papers in Palaeontology, 2021AbstractLinguliform brachiopods are a minor but distinctive component of the Palaeozoic Evolutionary Fauna. However, there is no formal research on Katian (Late Ordovician) linguliform microbrachiopods in South China. Fossils from the ‘Pagoda’, ‘Linhsiang’ and Daduhe formations, Wanhe section of Yunnan Province, South China, provide a unique ...
Di Chen +4 more
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Upper Ordovician (Sandbian–Katian) graptolite and conodont zonation in the Yangtze region, China
Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 2010ABSTRACTThe graptolite and conodont biostratigraphy of the latest Darriwilian, Sandbian and early and middle Katian succession on the Yangtze Platform is reassessed based on numerous new fossil collections and previously published data. At least at some localities, the lowermost Miaopo Formation is of pre-Nemagraptus gracilis Zone age (uppermost ...
Chen Xu +4 more
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2018
Anticosti Island (Gulf of the St. Lawrence, Canada) has some of the most complete, thickest and most richly fossiliferous carbonate successions in the world containing the Ordovician-Silurian boundary. This study focuses on the cyclostratigraphy of the upper Katian Vauréal Formation.
Sinnesael, Matthias +6 more
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Anticosti Island (Gulf of the St. Lawrence, Canada) has some of the most complete, thickest and most richly fossiliferous carbonate successions in the world containing the Ordovician-Silurian boundary. This study focuses on the cyclostratigraphy of the upper Katian Vauréal Formation.
Sinnesael, Matthias +6 more
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