Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal
Fialho, P. (Universidade de Évora. Departamento de Geociências)
Balbino, A. (Universidade de Évora. Departamento de Geociências)
Antunes, Miguel Teles (Universidade Nova de Lisboa. Faculdade de Ciências e Tecnologia)

Date:	2019
Abstract:	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.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Langhian ; Chondrichthyes ; Batomorphii ; Brielas ; Portugal
Published in:	Geologica acta, Vol. 17 (2019) , p. 1-16 (Articles) , ISSN 1696-5728

Adreça original: https://revistes.ub.edu/index.php/GEOACTA/article/view/GeologicaActa2019.17.7
Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/360172
DOI: 10.1344/GeologicaActa2019.17.7

16 p, 6.4 MB

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