Publicación Electrónica de la Asociación Paleontológica Argentina, 2010 This paper presents the first palynological record of the Punta Negra Formation, Devonian from the San Juan Precordillera, Argentina. Twelve acritarchs species, 11 spores species, 5 prasinophyte species, 2 chitinozoans genera and one incertae sedis were ...
Claudia V. Rubinstein
doaj
The succession of Hirnantian events based on data from Baltica: brachiopods, chitinozoans, conodonts, and carbon isotopes [PDF]
Estonian Journal of Earth Sciences, 2008 The Hirnantian (late Ordovician) environment was complex and dynamic. Understanding the correct order of events and their precise correlation with a time scale are extremely important for the development of different kinds of environmental ...
Kaljo, Dimitri +3 more
doaj
Chitinozoan stratigraphy in the Ashgill and Llandovery
, 1988 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
Hulterstad brachiopods and associated faunas in the Vormsi Stage (Upper Ordovician, Katian) of the Lelle core, Central Estonia [PDF]
Estonian Journal of Earth Sciences, 2007 Integrated palaeontological and sedimentological study of the Upper Ordovician Vormsi Stage in the Lelle drill core section, Central Estonia, revealed an association of shelly fauna containing the endemic saukrodictyid brachiopod Hulterstadia cor (Wiman),
Nõlvak, Jaak +3 more
doaj
Carnets de Géologie, 2005 The Hirnantian is an important time in Earth history as it includes one of the major episodes of continental glaciation and marine mass extinction (e.g. Brenchley et alii, 1994).
Grassineau Nathalie +4 more
doaj
Biostratigraphy of Acritarchs and Chitinozoans in Ordovician Strata from the Fazel Abad Area, Southeastern Caspian Sea, Alborz Mountains, Northern Iran: Stratigraphic Implications [PDF]
Journal of Sciences, Islamic Republic of Iran, 2017 Sixty-four surface samples from the Lower Palaeozoic rock units (mainly Lalun,Abastu and Abarsaj formations) near Kholin-Darreh village in the Fazel Abad area,southeastern the Caspian Sea, Northern Iran, were analyzed to determine their agerelationships.
M. Ghavidel-syooki
doaj
Early–Middle Ordovician chitinozoans from the Dawan Formation, Yichang area, Central China [PDF]
Journal of MicropalaeontologyThe late Early to early Middle Ordovician is a key interval for chitinozoan macroevolution, during which chitinozoans diversified significantly, reaching their first enormous radiation later in the Darriwilian.
Y. Liang +5 more
doaj +1 more source
Pre-Cambrian to Palaeozoic Palaeopalynology and Palaeobotany
Carnets de Géologie, 2005 A set of 14 abstracts and short papers (extended abstracts) of presentations given at a meeting organized by the NFSR Working Group, "Micropaléontologie végétale et Palynologie (MVP)", held on May 11, 2005 at the University of Liège, Belgium.
Steemans Philippe, Javaux Emmanuelle
doaj
LOWER TO MIDDLE ORDOVICIAN ACRITARCHS AND CHITINOZOANS FROM NORTHERN KARAKORUM MOUNTAINS, PAKISTAN
Rivista Italiana di Paleontologia e Stratigrafia, 2000 The lower Vidiakot section (Chitral, Pakistan) comprises the lower part (Yarkhun Formation and the base of the Vidiakot Formation) of the terrigenous complex transgressively overlying the crystalline basement of Northern Karakorum.
MARCO QUINTAVALLE +2 more
doaj +1 more source
Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India [PDF]
Acta Palaeontologica PolonicaThe end of the Ordovician witnessed major perturbations in the ecosystem, seriously affecting global marine biodiversity. Nevertheless, some marine organism groups and their crisis-bound palaeogeographic distribution are still understudied.
PETRA TONAROVÁ +8 more
doaj +1 more source