Conodontos del Wenlock y Ludlow (Silúrico) del Valle de Tena (Pirineos Aragoneses)

Silurian rocks from the Ten a Valley (Aragonian Pyrenees) are subdivided into three informal lithostratigraphic units: Unit «A», «Capas de Hoz», and Unit «8». The «Capas de Hoz» unit contains a rich conodont sequence spanning from Homerian to lower Ludfordian stages (Wenlock to Ludlow) that is descr...

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Detalhes bibliográficos
Autor: Valenzuela Ríos, J. I.
Tipo de documento: artigo
Data de publicação:1995
País:España
Recursos:Universidad de Huelva (UHU)
Repositório:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:espanhol
OAI Identifier:oai:ariasmontano.uhu.es:10272/13372
Acesso em linha:http://hdl.handle.net/10272/13372
Access Level:Acceso aberto
Palavra-chave:Conodonts
Silurian
Biostratigraphy
Aragonian Pyrenees
Descrição
Resumo:Silurian rocks from the Ten a Valley (Aragonian Pyrenees) are subdivided into three informal lithostratigraphic units: Unit «A», «Capas de Hoz», and Unit «8». The «Capas de Hoz» unit contains a rich conodont sequence spanning from Homerian to lower Ludfordian stages (Wenlock to Ludlow) that is described for the first time. This sequence is composed of three successive biostratigraphic units: Pseudooneotodus bicornis Fauna; Kockelella variabilis Zone and Polygnathoides siluricus Zone. The last two are worlwide widespread and, can, thus, be used for correlation purposes. Initially the sequence of fauna and rocks from the Tena Valley is compared to two sections in the Carnic Alps