来自葡萄牙下塔霍盆地Brielas的Langhian射线（软骨鱼类，Batomophi）。

IF 1.3 4区地球科学 Q2 GEOLOGY

Geologica Acta Pub Date : 2019-07-23 DOI:10.1344/geologicaacta2019.17.7

P. Fialho, A. Balbino, M. Antunes

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引用次数: 5

摘要

Brielas段（Almada Caparica路）的Langhian Vc单元位于下塔霍盆地（葡萄牙西部）的海洋中新世，富含蝙蝠类物种。在这项研究中，蝙蝠牙由149颗分离的牙齿化石和一块从洗涤和分类沉积物的大量样本中收集的牙齿化石板代表。共鉴定出12种，隶属于鼻形目、Rajiformes目、Torpediques目和Myliobatformes目。已知所有属和某些物种都有现存的代表。Aetobatus cappettai Antunes和Balbino，2006年，现在根据Langhian的材料进行了描述，这表明它比以前认为的要古老。本研究中描述的物种的生物地理范围、环境制约因素和行为表明，近海环境以温水条件为主，其中偶发性上升流导致不同类型的蝙蝠类动物共存于同一栖息地。

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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 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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来源期刊

Geologica Acta 地学-地质学

CiteScore

2.50

自引率

6.70%

发文量

审稿时长

>12 weeks

期刊介绍： - Relevant conceptual developments in any area of the Earth Sciences. - Studies presenting regional synthesis. - Thematic issues or monographic volumes presenting the results from one or more research groups. - Short papers reflecting interesting results or works in progress. - Contributions and results from Research Projects, Workshops, Symposiums, Congresses and any relevant scientific activity related to Earth Sciences. - Geologica Acta aims to stimulate rapid diffusion of results and efficient exchange of ideas between the widespread communities of Earth Science researchers (with special emphasis on Latinamerica, the Caribbean, Europe, the Mediterranean