Palynomorph succession of the Upper Pliensbachian–Lower Toarcian of the Peniche section (Portugal)
The Peniche section in the Lusitanian Basin (western Portugal) provides an exceptional, continuous record of the Portuguese Lower Jurassic, and is the candidate for the Global Boundary Stratotype Section and Point for the base of the Toarcian. This paper reports a palynological study of the Margarit...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/34345 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/34345 |
| Access Level: | acceso abierto |
| Palabra clave: | 56 Palynology Biostratigraphy Pliensbachian Toarcian Lower Jurassic Lusitanian Basin Palinologia Biostratigrafia Pliensbaquiano Estratotipo do Toarciano Jurássico Inferior Bacia Lusitânica Paleontología 2416 Paleontología |
| Sumario: | The Peniche section in the Lusitanian Basin (western Portugal) provides an exceptional, continuous record of the Portuguese Lower Jurassic, and is the candidate for the Global Boundary Stratotype Section and Point for the base of the Toarcian. This paper reports a palynological study of the Margaritatus, Spinatum, Polymorphum and Levisoni zones. Forty eight levels yielded representative and well preserved palynomorph assemblages. Fifty seven palynomorph taxa were recorded: 19 spore taxa, 20 pollen taxa, 11 acanthomorph acritarchs, 4 prasinophytes and 3 dinocyst taxa. The Pliensbachian levels show a characteristic predominance of Classopollis and a wide diversity of aquatic palynomorphs. The Toarcian levels are characterised by the pollen grains of Spheripollenites and a progressive reduction in the diversity of aquatic palynomorphs. |
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