Results 21 to 30 of about 1,840 (219)
Acta Palaeontologica Polonica, 2023 Heliolitines are a major tabulate coral group, which experienced their early diversification in the Katian (Late Ordovician). Fossils of this group are well represented in the Kuruktag area of northeastern Tarim Basin, Northwest China, but detailed ...
YU-NONG CUI, GUANG-XU WANG
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Global palaeogeographical implication of acritarchs in the Upper Ordovician [PDF]
Estonian Journal of Earth Sciences, 2023 The EarlyâMiddle Ordovician peri-Gondwana and Baltica acritarch provinces are easily recognizable, illustrating a clear provincialism of global phytoplankton.
Yan Kui +4 more
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A multiproxy study of the Puhmu core section (Estonia, Upper Ordovician): consequences for stratigraphy and environmental interpretation [PDF]
Estonian Journal of Earth Sciences, 2017 A multiproxy study of the Katian and Hirnantian in the Puhmu core in NE Estonia resulted in new data on chitinozoan and brachiopod biostratigraphy. Some mass occurrences of dasycladacean algae are tied to small early Katian ‘reefs’.
Dimitri Kaljo +3 more
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The youngest representatives of the genus Ribeiria Sharpe, 1853 from the late Katian of the Prague Basin (Bohemia) [PDF]
Estonian Journal of Earth Sciences, 2015 Ribeiria apusoides and Ribeiria johni sp. nov. are described from the late Katian of the Prague Basin (Bohemia) as the youngest representatives of the genus Ribeiria.
Marika Polechová
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Subway into the Ordovician (Prague Basin, Czech Republic) [PDF]
Estonian Journal of Earth Sciences, 2023 In the Late Ordovician, the Prague Basin was located at the high-latitude northwestern shelf of Gondwana. This period was characterised by profound environmental changes and ended by one of the most severe mass extinctions, which was caused by climatic ...
Jana Bruthansová +2 more
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City Rhythms: Urban Mobility Relations in Ho Chi Minh City
City &Society, Volume 35, Issue 2, Page 89-100, August 2023., 2023 Abstract Moving beyond a rhythmanalysis approach to banal mobilities and diurnal journey making – commuting, visiting, shopping, leisure – this paper explores how place‐dependent forms of transport shape the feel and flow of the city. Theorizing the city as polyrhythmic reveals multiple traces of local/global and past/present in the socio‐historically ...
Catherine Earl
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Age of the Ordovician sedimentary succession in Lumparn Bay, Åland Islands, Finland [PDF]
Estonian Journal of Earth Sciences, 2023 Depression of the ancient Lumparn meteorite impact structure in the à land Islands is partly infilled with the lower Palaeozoic sediments, lying presently below sea level. The Cambrian and Ordovician sedimentary cover is distributed in the area of 15 km2,
Leho Ainsaar, Tõnu Meidla
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Papers in Palaeontology, Volume 9, Issue 4, July/August 2023., 2023 Abstract Machaeridians are armoured annelids that were morphologically diverse during the Palaeozoic. The scleritome developed from fleshy protrusions at the base of each parapodium, with alternating segments giving rise to differentiated inner and outer shell plates.
Luke A. Parry +3 more
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Papers in Palaeontology, Volume 9, Issue 2, March/April 2023., 2023 Abstract The fossil record yields a peculiar phenomenon in different kinds of molluscan shells: bioclaustrations formed around (epi)symbionts during growth of the hosts' shell margin. Four morphologies, two of them formerly considered bioerosion traces, are here united in the parataxonomy of bioclaustration structures under the revised cecidogenus ...
Max Wisshak +6 more
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The early Katian (Late Ordovician) reefs near Saku, northern Estonia and the age of the Saku Member, Vasalemma Formation [PDF]
Estonian Journal of Earth Sciences, 2014 Reefs developed simultaneously during the latest Sandbian/earliest Katian global Guttenberg Isotopic Carbon Excursion (GICE) in several places across Baltoscandia.
Björn Kröger +4 more
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