Trilobites epipelágicos del Ordovícico de Perú y Bolivia

[EN] Epipelagic telephinid trilobites rarely occur in the Ordovician of South America, being represented by few specimens recorded from the Argentinian Precordillera, the Famatina Basin, eastern Puna and Cordillera Oriental. We here report the northernmost occurrences of the genera Carolinites and O...

Descripción completa

Detalles Bibliográficos
Autores: Gutiérrez-Marco, J. C., Rábano, Isabel, Aceñolaza, Guillermo F., Chacaltana, César A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/134687
Acceso en línea:http://hdl.handle.net/10261/134687
Access Level:acceso abierto
Palabra clave:Trilobites
Ordovícico Inferior
Gondwana
Cuenca andina central
Paleocorrientes cálidas
Descripción
Sumario:[EN] Epipelagic telephinid trilobites rarely occur in the Ordovician of South America, being represented by few specimens recorded from the Argentinian Precordillera, the Famatina Basin, eastern Puna and Cordillera Oriental. We here report the northernmost occurrences of the genera Carolinites and Oopsites in the Central Andean Basin, coming from the Lower Ordovician rocks of the Sella Formation of southern Bolivia (Carolinites genacinaca Ross s.l.) and from the San José Formation of southwestern Peru (Oopsites sp. nov). The scarce record of these telephinids has been related to warm water currents, that sporadically moving southwards along the Gondwanan margin, carrying palaeotropical trilobites into more temperate to cool-­‐water higher palaeolatitudes.