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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, ...
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 ...
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 ...
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 ...
Conodonts and graptolites of the Santa Rosita Formation (Tremadocian) at the Nazareno area, Santa Victoria Range, Cordillera Oriental de Salta, Argentina
(Asociación Paleontológica Argentina, 2013-07)
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 ...
Tips on the SW-Gondwana margin: Ordovician conodont-graptolite biostratigraphy of allochthonous blocks in the Rinconada mélange, Argentine PrecordilleraSugerencias sobre el margen SO de Gondwana: Bioestratigrafía de conodontes y graptolitos del Ordovícico en bloques alóctonos de la mélange Rinconada, precordillera Argentina
(Servicio Nacional de Geología y Minería, 2018-09)
The Rinconada Formation is a mélange that crops out in the eastern margin of the Argentine Precordillera, an exotic terrane accreted to Gondwana in Ordovician times. Its gravity-driven deposits have been studied by means ...
Age correlations for the acoite formation (lower ordovician) at Aguas Blancas Creek in the Cordillera Oriental of Jujuy province, Argentina
(Taylor & Francis Ltd, 2021-01-17)
Here, we use conodont and graptolite assemblages to age correlate the ‘Sepulturas limestones’ facies of the Acoite Formation exposed at Aguas Blancas Creek, near Altos de Lip an in the Cordillera Oriental of Jujuy Province, ...
Graptolite-trilobite biostratigraphy in the Santa Victoria area, northwestern Argentina. A key for regional and worldwide correlation of the Lower Ordovician (Tremadocian-Floian)
(Asociacion Paleontologica Argentina, 2015-10)
New graptolite-trilobite records provide relevant information for the biostratigraphic framework of the lower Paleozoic in western Gondwana. Aorograptus victoriae (T. S. Hall), together with Adelogratus cf. A. altus Williams ...