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New insights into the paleobiogeography of the Early Ordovician graptolite fauna of northwestern ArgentinaNouveau regard sur la paléobiogéographie de la faune de graptolites de l’Ordovicien inférieur de l’Argentine nord-occidentale
(Elsevier France-editions Scientifiques Medicales Elsevier, 2012-07)
A multivariate analysis was used to determine the faunistic relationships of the northwestern Argentinean graptolite faunas of Floian age to faunas from Baltica, Avalonia, Laurentia and SW China. A statistical analysis at ...
Graptolites from the Upper Llandovery of the Talacasto area, Central Precordillera, San Juan, Argentina
(Paleontological Society, 2003-12)
Graptolites are the most important biostratigraphic tool in the study of the Silurian of the Argentine Precordillera. Since, however, the graptolites are concentrated primarily in the Lower Llandovery and Ludlow of the ...
Graptolite and conodont faunas of Upper Ordovician (Sandbian) successions of the Argentine Precordillera: Biostratigraphic implications
(John Wiley & Sons Ltd, 2019-07)
Graptolites and conodonts are frequent fossils in Sandbian (Late Ordovician) outcrops of the Argentine Precordillera, where they present continuous and abundant records that enable detailed biostratigraphic studies. This ...
Lower middle Darriwilian (Ordovician) graptolites and index conodonts from the Central Precordillera of San Juan Province, Argentina
(John Wiley & Sons Ltd, 2018-09)
This study includes 3 localities from the Jáchal area in the Central Precordillera of San Juan Province, from north to south: the Oculta creek, Las Aguaditas creek, and Cerro La Chilca sections. We deal with the graptolite ...
Conodont and graptolite biostratigraphy of the lower–middle Darriwilian (Middle Ordovician), Cerro Viejo of Huaco, Argentine Precordillera
(John Wiley & Sons Ltd, 2018-08)
The distribution of conodonts and graptolites from the upper 13 m of the San Juan Formation and the first metre of the lower member of the Los Azules Formation, Los Gatos and Amarilla creeks, Cerro Viejo of Huaco, Central ...
The Upper Tremadocian (Ordovician) Graptolite Bryograptus: taxonomy, biostratigraphy and biogeography
(The Paleontological Association, 2010-01)
The taxonomy, biostratigraphical and palaeogeographical distribution of the Lower Ordovician graptolite genus Bryograptus is evaluated. Bryograptus is recognized as a distinct triradiate anisograptid with a multiramous, ...
Paleoecological and paleobiogeographic considerations of Ordovician graptolites from the Cordillera Oriental, Jujuy province, Argentina
(Taylor & Francis, 2013-11)
We analyse new paleoecological data from South American graptolite records to understand the patterns that influence the space-tempo distribution of the group. A cluster analysis including taxa from the Baltograptus cf. ...
Biostratigraphy and palaeoecology of Middle-Late Ordovician conodont and graptolite faunas of the Las Chacritas River section, Precordillera of San Juan, Argentina
(Cambridge University Press, 2015-09)
A conodont-graptolite biostratigraphic study was carried out on the top strata of the San Juan, Las Chacritas and Las Aguaditas formations in the La Trampa Range, Precordillera of San Juan in western Argentina. Significant ...
Middle Ordovician conodonts and graptolites at Los Cauquenes range, central Precordillera of San Juan, Argentina
(Asociación Paleontológica Argentina, 2013-07)
The Ordovician System is superbly represented in the Precordillera of western Argentina, at the Andean foothills. During the Middle Ordovician, an important paleogeographical rearrangement of depocenters and source areas ...