A silicoflagellate from the middle Albian of Austral Basin, Argentina

Calcareous nannofossil biostratigraphic investigations of Cretaceous sediments within the southern high latitude Austral Basin, Argentina, have revealed the presence of a fragment of a silicoflagellate possibly belonging to the species Variramus aculeifera (Deflandre) McCartney, Wise, Harwood and Ge...

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Detalles Bibliográficos
Autor principal: Pérez Panera, Juan Pablo
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 2015
Materias:
Paleontología
Albian
Argentina
Austral Basin
Variramus
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86620
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86620
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Albian
Argentina
Austral Basin
Variramus
spellingShingle Paleontología
Albian
Argentina
Austral Basin
Variramus
Pérez Panera, Juan Pablo
A silicoflagellate from the middle Albian of Austral Basin, Argentina
topic_facet Paleontología
Albian
Argentina
Austral Basin
Variramus
description Calcareous nannofossil biostratigraphic investigations of Cretaceous sediments within the southern high latitude Austral Basin, Argentina, have revealed the presence of a fragment of a silicoflagellate possibly belonging to the species Variramus aculeifera (Deflandre) McCartney, Wise, Harwood and Gersonde. Although only a fragment was identified in the samples examined from this locality, its presence is important, as it is only the second documented occurrence of an Early Cretaceous silicoflagellate. The specimen was found in a subsurface sample from the informal Palermo Aike Formation at Austral Basin. This stratigraphic level is interpreted as middle Albian on the basis of calcareous nannofossil biostratigraphy. The specimen consists of a fragmented strut with broken spines at the base, which allows the observation of the hollow skeletal structure. The strut is curved and slightly expanded at the widest part, which are characteristics diagnostic of the genus Variramus.
format Articulo
Comunicacion
author Pérez Panera, Juan Pablo
author_facet Pérez Panera, Juan Pablo
author_sort Pérez Panera, Juan Pablo
title A silicoflagellate from the middle Albian of Austral Basin, Argentina
title_short A silicoflagellate from the middle Albian of Austral Basin, Argentina
title_full A silicoflagellate from the middle Albian of Austral Basin, Argentina
title_fullStr A silicoflagellate from the middle Albian of Austral Basin, Argentina
title_full_unstemmed A silicoflagellate from the middle Albian of Austral Basin, Argentina
title_sort silicoflagellate from the middle albian of austral basin, argentina
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/86620
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AT perezpanerajuanpablo unsilicoflageladoenelalbianomediodelacuencaaustralargentina
AT perezpanerajuanpablo silicoflagellatefromthemiddlealbianofaustralbasinargentina
bdutipo_str Repositorios
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