Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]
, 2012 Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L +3 more
core +1 more source
Late Ordovician jawed polychaete fauna from the Spiti Valley, northern India [PDF]
Estonian Journal of Earth Sciences, 2023 The final part of the Ordovician Period was characterised by major perturbations in climate, environments and ecosystems, as proved by numerous studies. These changes resulted in one of the biggest extinctions in Earthâs history. Most research in early
Petra Tonarová +3 more
doaj +1 more source
RNames, a stratigraphical database designed for the statistical analysis of fossil occurrences : the Ordovician diversification as a case study [PDF]
, 2017 RNames (rnames.luomus.fi/) is an open access relational database linking stratigraphic units with each other that are considered to be time-equivalent or time overlapping. RNames is also a tool to correlate among stratigraphic units. The structure of the
Kröger, Björn, Lintulaakso, Kari
core +1 more source
Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania:a standard for southern Scandinavia [PDF]
, 2014 The Rostanga-1 core from west-central Scania provides the most complete succession of the Sandbian (Upper Ordovician) through lower Telychian (Silurian, Llandovery) strata of southern Scandinavia. The Hirnantian is identified in the Kallholn Formation by
Ahlberg, Per +3 more
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Calibrating Water Depths of Ordovician Communities: Lithological and Ecological Controls on Depositional Gradients in Upper Ordovician Strata of Southern Ohio and North-Central Kentucky, USA [PDF]
, 2015 Limestone and shale facies of the Upper Ordovician Grant Lake Formation (Katian: Cincinnatian, Maysvillian) are well exposed in the Cincinnati Arch region of southern Ohio and north-central Kentucky, USA.
Aucoin, Christopher D. +5 more
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High resolution conodont-graptolite biostratigraphy in the Middle-Upper Ordovician of the Sierra de La Invernada Formation (Central Precordillera, Argentina) [PDF]
, 2008 Outcrops on the western slope of the La Invernada Range, San Juan Precordillera (W Argentina), were surveyed for lithofacial analysis and graptolite-conodont high resolution biostratigraphy.
Albanesi, G. L., +3 more
core +3 more sources
A new Late Ordovician bubble-headed trilobite species from South West Wales and its implications for biostratigraphy [PDF]
Acta Palaeontologica PolonicaA new species of bubble-headed trilobite, Staurocephalus oliveae sp. nov., is described from 250 specimens collected from a recently discovered locality in the Sholeshook Limestone Formation (upper Katian, Upper Ordovician; Ashgill, Cautleyan Zone 1 ...
MANUS G. LEIDI +3 more
doaj +1 more source
Palaeozoic correlations and the Palaeogeography of the Sibumasu (Shan-Thai) Terrane - a brief review [PDF]
Research & Knowledge, 2016 Furongian sandstones yield shallow-water trilobite faunas along the length of the Sibumasu Terrane in the four regions of NW Malaysia (Langkawi), southern Thailand (Satun), the Shan States of Myanmar and the Baoshan Block of western Yunnan.
Clive Burrett +2 more
doaj +1 more source
A Palaeozoic open shelf benthic assemblage in a protected marine environment [PDF]
, 2011 International audienceA Late Ordovician benthic assemblage containing trilobites (Colpocoryphe, Onnia) and diploporid echinoderms (Aristocystites) taxa that are usually typical of open shelf environments is preserved in protected marine settings in the ...
Botquelen, Arnaud +3 more
core +3 more sources
A new Byronia species from the Late Ordovician of Estonia [PDF]
Estonian Journal of Earth Sciences, 2016 A new species of a possible thecate scyphozoan Byronia jaegeri sp. nov. is described from the late Katian of Estonia. This new taxon is distinct as it lacks the longitudinal ornamentation present in other Byronia species.
Olev Vinn +3 more
doaj +1 more source