Results 11 to 20 of about 1,784 (228)

ORDOVICIAN (DARRIWILIAN–KATIAN) BRACHIOPODS FROM THE SOUTHEASTERN MARGIN OF AVALONIA (CONDROZ INLIER, BELGIUM) [PDF]

open access: yesRivista Italiana di Paleontologia e Stratigrafia
A low-diversity, relatively well-preserved brachiopod fauna is documented in detail for the first time from the Sandbian–Katian (Upper Ordovician) siliciclastic rocks of the Oxhe Inlier (Belgium), i.e.
Yves Candela   +2 more
doaj   +4 more sources

Redefinition of the Sandbian–lower Katian conodont biozonation of Baltoscandia [PDF]

open access: yesGeological Magazine
Abstract Recent development in the Upper Ordovician conodont biostratigraphy of Baltoscandia highlights the mismatch between the traditionally used conodont zonation and ranges of the eponymous species. Practical application of the zonation is further complicated by the fact that the morphology of the long-ranging species Amorphognathus tvaerensis ...
Tõnn Paiste   +4 more
semanticscholar   +4 more sources

An unusual new ophiuroid (Echinodermata) from the Late Ordovician (early Katian) of Morocco [PDF]

open access: yesComptes Rendus Palevol
A 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
semanticscholar   +5 more sources

Katian (Upper Ordovician) conodonts from Wales [PDF]

open access: yesPalaeontology, 2013
AbstractMiddle and upper Katian conodonts were previously known in the British Isles from relatively small collections obtained from a few localities. The present study is mainly based on 17 samples containing more than 17 000 conodont elements from an approximately 14‐m‐thick succession of the Sholeshook Limestone Formation in a road cut near Whitland,
FERRETTI, Annalisa   +2 more
core   +8 more sources

The trilobite assemblage of the Declivolithus Fauna (lower Katian, Ordovician) of Morocco: a review with new data [PDF]

open access: yesJournal 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   +2 more
semanticscholar   +4 more sources

The youngest representatives of the genus Ribeiria Sharpe, 1853 from the late Katian of the Prague Basin (Bohemia) [PDF]

open access: yesEstonian 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
doaj   +3 more sources

Diverse endobiotic symbiont fauna from the late Katian (Late Ordovician) of Estonia [PDF]

open access: yesPalaeontologia 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
openaire   +3 more sources

A possible Laurentian volchoviid ophiocistioid from the Katian of southwestern Ohio [PDF]

open access: yesJournal 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
openaire   +4 more sources

The early Katian (Late Ordovician) reefs near Saku, northern Estonia and the age of the Saku Member, Vasalemma Formation [PDF]

open access: yesEstonian 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
doaj   +3 more sources

Ostracods from Upper Ordovician (Katian) carbonate lithofacies in southwest Scotland [PDF]

open access: yesGeological 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
openaire   +4 more sources

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