Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal

The Langhian Vc unit of Brielas section (Caparica road, Almada), in the marine Miocene of the Lower Tagus Basin (West Portugal), is rich in batoid species. In this study, batoids are represented by 149 isolated fossil teeth and a single fossil dental plate collected from a bulk sample of washed and...

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Main Authors: P. Fialho, A. Balbino, M.T. Antunes
Format: Article
Language:English
Published: Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB) 2019-07-01
Series:Geologica Acta
Subjects:
Online Access:https://revistes.ub.edu/index.php/GEOACTA/article/view/21822
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author P. Fialho
A. Balbino
M.T. Antunes
author_facet P. Fialho
A. Balbino
M.T. Antunes
author_sort P. Fialho
collection DOAJ
description The Langhian Vc unit of Brielas section (Caparica road, Almada), in the marine Miocene of the Lower Tagus Basin (West Portugal), is rich in batoid species. In this study, batoids are represented by 149 isolated fossil teeth and a single fossil dental plate collected from a bulk sample of washed and sorted sediment. A total of 12 species belonging to the orders Rhinopristiformes, Rajiformes, Torpediniformes and Myliobatiformes were identified. All genera and some species are known to have extant representatives. Aetobatus cappettai Antunes and Balbino, 2006, is described now from Langhian material which suggests it is older than previously supposed. The biogeographic ranges, environmental constraints and behaviour of the species described in this study point out to an infralittoral environment characterized by the dominance of warm water conditions, where episodic upwelling contributed to the occurrence of different types of batoids coexisting in the same habitat.
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publishDate 2019-07-01
publisher Universitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)
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spelling doaj.art-3767df1bdb974dd7883df1b2a90419222023-10-20T07:26:35ZengUniversitat de Barcelona (UB), Geociències Barcelona (Geo3BCN), Institut de Diagnosi Ambiental i Estudis de l'Aigua (IDAEA), Universitat Autònoma de Barcelona (UAB)Geologica Acta1696-57282019-07-0117Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, PortugalP. Fialho0A. Balbino1M.T. Antunes2Departamento de Geociências, ECT, Universidade de Évora Rua Romão Ramalho 59, 7000-671, Évora, PortugalDepartamento de Geociências, ECT, Universidade de Évora Rua Romão Ramalho 59, 7000-671, Évora, Portugal Academia das Ciências de Lisboa Rua da Academia das Ciências 19, 1249-122 Lisboa, PortugalAcademia das Ciências de Lisboa Rua da Academia das Ciências 19, 1249-122 Lisboa, Portugal Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa 2829-516 Caparica, Portugal.The Langhian Vc unit of Brielas section (Caparica road, Almada), in the marine Miocene of the Lower Tagus Basin (West Portugal), is rich in batoid species. In this study, batoids are represented by 149 isolated fossil teeth and a single fossil dental plate collected from a bulk sample of washed and sorted sediment. A total of 12 species belonging to the orders Rhinopristiformes, Rajiformes, Torpediniformes and Myliobatiformes were identified. All genera and some species are known to have extant representatives. Aetobatus cappettai Antunes and Balbino, 2006, is described now from Langhian material which suggests it is older than previously supposed. The biogeographic ranges, environmental constraints and behaviour of the species described in this study point out to an infralittoral environment characterized by the dominance of warm water conditions, where episodic upwelling contributed to the occurrence of different types of batoids coexisting in the same habitat. https://revistes.ub.edu/index.php/GEOACTA/article/view/21822LanghianChondrichthyesBatomorphiiBrielasPortugal
spellingShingle P. Fialho
A. Balbino
M.T. Antunes
Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
Geologica Acta
Langhian
Chondrichthyes
Batomorphii
Brielas
Portugal
title Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
title_full Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
title_fullStr Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
title_full_unstemmed Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
title_short Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
title_sort langhian rays chondrichthyes batomorphii from brielas lower tagus basin portugal
topic Langhian
Chondrichthyes
Batomorphii
Brielas
Portugal
url https://revistes.ub.edu/index.php/GEOACTA/article/view/21822
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