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
An in situ shelly fauna from the lower Paleozoic Zapla diamictite of northwestern Argentina: implications for the age of glacial events across Gondwana [PDF]
, 2015 A shelly fauna from the upper part of the Zapla glacial diamictite includes thelingulate brachiopod Orbiculoidea radiata Troedsson, the rhynchonelliforms Dalmanella cf. testudinaria (Dalman) and Paromalomena sp., the bivalve Modiolopsis?
Benedetto, Juan Luis Arnaldo +3 more
core +2 more sources
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
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
Redefinition of the Sandbian–lower Katian conodont biozonation of Baltoscandia
Geological MagazineAbstract 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
openaire +2 more sources
New Katian bivalves from the Upper Ordovician Xiazhen Formation, Jiangxi Province, China
Acta Palaeontologica PolonicaA bivalve association reported herein was recently discovered from the Xiazhen Formation (upper Katian, Upper Ordovician) at Zhuzhai, southern Yushan County, northeastern Jiangxi Province, East China.
Yong Wang, Ren-Bin Zhan, Zong-Jie Fang
doaj +1 more source
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
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