New late Tremadocian (Early Ordovician) conodont and graptolite records from the southern South American Gondwana margin (Eastern Cordillera, Argentina)
Zeballo, Fernando J. (Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales)
Albanesi, G. L., (Guillermo L.) (Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales)
Ortega, Gladys del Carmen (Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales)

Date:	2008
Abstract:	New late Tremadocian (Early Ordovician) conodont and graptolite faunas from the eastern and central belts of the Eastern Cordillera (Jujuy Province, northwestern Argentina) are reported. The conodont fauna includes the guide species Paltodus deltifer pristinus, Paltodus deltifer deltifer, and Acodus deltatus (sensu lato), in association with other taxa, and the graptolites Aorograptus victoriae, Ancoragraptus cf. bulmani, and Adelograptus cf. altus. Overlapping ranges of the recorded species allow for a partial correlation between the Acodus deltatus-Paroistodus proteus and Aorograptus victoriae zones, and the Notopeltis orthometopa trilobite Zone. The conodont fauna includes a mixture of forms typical of the Baltoscandian and Laurentian provinces, respectively. The Early Ordovician basin of northwestern Argentina may correspond to the Shallow-Sea Realm and Cold Domain and probably records the development of a differentiated conodont province in the southern South American margin of Gondwana.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Conodonts ; Graptolites ; Tremadocian ; Ordovician ; Eastern Cordillera
Published in:	Geologica acta, Vol. 6, Núm. 2 (Juny 2008) , p. 131-145, ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/129624
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/105.000000247
DOI: 10.1344/105.000000247

15 p, 2.5 MB

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