Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina

Cretaceous bakevelliids in Argentina are restricted to the Lower Cretaceous. They are recorded in shallow marine deposits in two Mesozoic basins located in the Andes foothills in Patagonia. In the Austral Basin (44°-55°S) there is only one genus, Gervillella , represented by a single specimen from t...

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Autor principal: Gustavo Lazo, D.
Formato: JOUR
Materias:
Argentina
Bakevelliidae
Lower Cretaceous
Palaeobiology
Taphonomy
Taxonomy
biostratigraphy
Cretaceous
facies analysis
paleobiology
sequence stratigraphy
Patagonia
Bakevellia
Bivalvia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01956671_v24_n6_p765_GustavoLazo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01956671_v24_n6_p765_GustavoLazo
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spelling todo:paper_01956671_v24_n6_p765_GustavoLazo2023-10-03T15:09:20Z Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina Gustavo Lazo, D. Argentina Bakevelliidae Lower Cretaceous Palaeobiology Taphonomy Taxonomy biostratigraphy Cretaceous facies analysis paleobiology sequence stratigraphy Argentina Patagonia Bakevellia Bivalvia Bivalvia Cretaceous bakevelliids in Argentina are restricted to the Lower Cretaceous. They are recorded in shallow marine deposits in two Mesozoic basins located in the Andes foothills in Patagonia. In the Austral Basin (44°-55°S) there is only one genus, Gervillella , represented by a single specimen from the Barremian. In the Neuquén Basin (30°-40°S) two genera, Gervillaria and Gervillella, occur, ranging from the Berriasian to the Lower Barremian. In the Pilmatué Member of the Agrio Formation two species are identified: Gervillaria alatior (Imlay) and Gervillella aviculoides (J. Sowerby). The former is also recorded in Mexico while the latter is more widespread, occurring in Europe, Asia, and Africa. In the Bajada del Agrio section they come from eight tabular shell beds located near and on top of shallowing-upwards cycles. They were abundant only in four of these levels. These shell beds are interpreted as having been deposited in the mid-ramp (middle of cycles), and upper mid-ramp (top of cycles). A functional analysis of shells revealed two life habits: epibyssate and endobyssate. © 2003 Elsevier Ltd. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01956671_v24_n6_p765_GustavoLazo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Bakevelliidae
Lower Cretaceous
Palaeobiology
Taphonomy
Taxonomy
biostratigraphy
Cretaceous
facies analysis
paleobiology
sequence stratigraphy
Argentina
Patagonia
Bakevellia
Bivalvia
Bivalvia
spellingShingle Argentina
Bakevelliidae
Lower Cretaceous
Palaeobiology
Taphonomy
Taxonomy
biostratigraphy
Cretaceous
facies analysis
paleobiology
sequence stratigraphy
Argentina
Patagonia
Bakevellia
Bivalvia
Bivalvia
Gustavo Lazo, D.
Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina
topic_facet Argentina
Bakevelliidae
Lower Cretaceous
Palaeobiology
Taphonomy
Taxonomy
biostratigraphy
Cretaceous
facies analysis
paleobiology
sequence stratigraphy
Argentina
Patagonia
Bakevellia
Bivalvia
Bivalvia
description Cretaceous bakevelliids in Argentina are restricted to the Lower Cretaceous. They are recorded in shallow marine deposits in two Mesozoic basins located in the Andes foothills in Patagonia. In the Austral Basin (44°-55°S) there is only one genus, Gervillella , represented by a single specimen from the Barremian. In the Neuquén Basin (30°-40°S) two genera, Gervillaria and Gervillella, occur, ranging from the Berriasian to the Lower Barremian. In the Pilmatué Member of the Agrio Formation two species are identified: Gervillaria alatior (Imlay) and Gervillella aviculoides (J. Sowerby). The former is also recorded in Mexico while the latter is more widespread, occurring in Europe, Asia, and Africa. In the Bajada del Agrio section they come from eight tabular shell beds located near and on top of shallowing-upwards cycles. They were abundant only in four of these levels. These shell beds are interpreted as having been deposited in the mid-ramp (middle of cycles), and upper mid-ramp (top of cycles). A functional analysis of shells revealed two life habits: epibyssate and endobyssate. © 2003 Elsevier Ltd. All rights reserved.
format JOUR
author Gustavo Lazo, D.
author_facet Gustavo Lazo, D.
author_sort Gustavo Lazo, D.
title Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina
title_short Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina
title_full Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina
title_fullStr Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina
title_full_unstemmed Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina
title_sort taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the lower cretaceous of west-central argentina
url http://hdl.handle.net/20.500.12110/paper_01956671_v24_n6_p765_GustavoLazo
work_keys_str_mv AT gustavolazod taxonomyfaciesrelationshipsandpalaeobiologyofbakevelliidbivalvesfromthelowercretaceousofwestcentralargentina
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