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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Diverse endobiotic symbiont fauna from the late Katian (Late Ordovician) of Estonia
Palaeontologia Electronica, 2022 Vinn, Olev, Wilson, Mark A., Holmer, Lars E., Ernst, Andrej, Tinn, Oive, Toom, Ursula (2022): Diverse endobiotic symbiont fauna from the late Katian (Late Ordovician) of Estonia.
Vinn, Olev +5 more
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Composition and significance of the Katian (Upper Ordovician) conodont fauna of the Vaux Limestone (‘Calcaire des Vaux’) in Normandy, France [PDF]
Estonian Journal of Earth Sciences, 2014 Study of new conodont collections from the Vaux Limestone exposed at its classical locality at Saint-Hilaire-la-Gérard in the Sées syncline, the conodont fauna of which was previously described in a preliminary way by Weyant et al.
Annalisa Ferretti +2 more
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A possible Laurentian volchoviid ophiocistioid from the Katian of southwestern Ohio [PDF]
Journal of Paleontology, 2021 The Cincinnatian (Katian) of the Cincinnati Tri-State area is widely regarded as one of the most fossiliferous sections known (Meyer and Davis, 2009). Echinoderms from these strata include well-described asteroids, crinoids, cyclocystoids, edrioasteroids, glyptocystoids, mitrates, and ophiuroids.
William I. Ausich, Jeffrey R. Thompson
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Katian (
Palaeontology, 2013 Abstract Middle and upper K atian conodonts were previously known in the B ritish I sles from relatively small collections obtained from a few localities.
FERRETTI, Annalisa +2 more
core +6 more sources
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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Ostracods from Upper Ordovician (Katian) carbonate lithofacies in southwest Scotland
Geological Magazine, 2010 AbstractThe Ordovician Craighead Limestone Formation of southwest Scotland was formed on a carbonate platform on the eastern tropical margin of the Laurentia palaeocontinent during the early Katian (c.456 Ma). It yields the most diverse and well-preserved ostracod fauna yet recovered from the Scottish Ordovician succession, with some 25 species ...
Mohibullah, M +5 more
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An unusual new ophiuroid (Echinodermata) from the Late Ordovician (early Katian) of Morocco
Comptes Rendus PalevolA distinctive new genus and species of the subphylum Asterozoa, Componaster spurius n. gen., n. sp., is described from the Late Ordovician (early Katian) of Morocco. Construction of the ambulacral column is considered key to delineation of classes of the subphylum Asterozoa: morphology and configuration of the mouth frame, axial (ambulacral series ...
Glass, Alexander +2 more
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AGU Advances, 2022 The Ordovician (Hirnantian; 445 Ma) hosts the second most severe mass extinction in Earth history, coinciding with Gondwanan glaciation and increased geochemical evidence for marine anoxia.
Nevin P. Kozik +4 more
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Discovery of trimerellide brachiopod Gasconsia from the Ordovician of Estonia [PDF]
Estonian Journal of Earth SciencesIn this study, the first trimerellide brachiopods from Estonia are described. They occur in the uppermost Katian (Upper Ordovician) shallow shelf environments and represent some of the largest Ordovician brachiopods.
Linda Hints, Jiayu Rong
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