Plant taphonomy and palaeoenvironment from the Upper Cretaceous of Isona, Tremp Basin, southern Pyrenees, Catalonia, Spain
| Autor: | Josep Marmi, Sheila Villalba-Breva, Mª Teresa Fernández-Marrón, Carles Martín-Closas, Bernard Gomez, Véronique Daviero-Gomez |
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| Přispěvatelé: | Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Palynology
geography Palaeobotany geography.geographical_feature_category Taphonomy Floodplain biology Pyrenees Paleontology Plant community 15. Life on land Structural basin biology.organism_classification 6. Clean water Cretaceous Gymnosperm Spain [SDU]Sciences of the Universe [physics] Paleobotany Latest Cretaceous Geology |
| Zdroj: | Cretaceous Research Cretaceous Research, 2015, 54, pp.34-49. ⟨10.1016/j.cretres.2014.10.007⟩ |
| DOI: | 10.1016/j.cretres.2014.10.007⟩ |
| Popis: | Lower Maastrichtian plant fossils were newly collected from the base of the Xulli unit, Tremp Group, in Isona, Tremp Basin, southern Pyrenees. They consist of conifers, monocot and eudicot angiosperms. Palynology shows algal oospores, fern spores, gymnosperm and angiosperm pollen grains. Sedimentological and taphonomic analyses indicate that this assemblage is parautochthonous and allochthonous. The plant fragments probably came from a nearby exposed area and were deposited in the distal floodplain. These taphonomic data shed light on the exact location and sampling biases of the palaeobotanical collection from Isona gathered by Vicente i Castells in the 1980s. Angiosperms and ferns dominated the plant community, which grew inland in freshwater environments. Cheirolepids inhabited coastal freshwater lakes in the same basin (the Posa unit) and in the geographically close basin of Vallcebre. (C) 2014 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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