Altitudinal species richness patterns of vascular plants in the south-eastern Pyrenees and nearby mountains of Catalonia

Tasmania is the south-eastern island state of Australia. It is geographically isolated and is recognised for both its rich diversity of plant species and high degree of endemism. Although 530 endemic Tasmanian vascular plant species are known, natural products have only been isolated from 27 of these species (~5.1 %), representing 3 classes (Dicotyledonae, Monocotyledonae, and Gymnospermae), 12 families, and 14 genera. Terpenoids, flavonoids, and alkaloids are the major classes of compound that have been isolated from these species. This report provides the first review of the natural products isolated from endemic Tasmanian plant species and covers ~70 years of research in this area.

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Settlement patterns during the Magdalenian in the south-eastern Pyrenees, Iberian Peninsula. A territorial study based on GIS

Journal of Archaeological Science Reports ◽

10.1016/j.jasrep.2018.10.002 ◽

2018 ◽

Vol 22 ◽

pp. 237-247

Author(s):

Bàrbara Mas ◽

Ethel Allué ◽

Marta Sánchez de la Torre ◽

Óscar Parque ◽

José Miguel Tejero ◽

...

Keyword(s):

Iberian Peninsula ◽

Settlement Patterns ◽

The South ◽

South Eastern ◽

Eastern Pyrenees

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Reconstructing the Early Eocene Sediment Routing System of the south-eastern Pyrenees

10.5194/egusphere-egu2020-10853 ◽

2020 ◽

Author(s):

Miguel Garcés ◽

Miguel López-Blanco ◽

Elisabet Beamud ◽

Josep Anton Muñoz ◽

Pau Arbués ◽

...

Keyword(s):

Detrital Zircon ◽

Foreland Basin ◽

Transfer System ◽

Early Eocene ◽

The South ◽

Rift Basins ◽

South Eastern ◽

Eastern Pyrenees ◽

Sediment Routing ◽

Tectonic Loading

<p>The Early Eocene was the period of most intense plate collision during the building of the Pyrenean orogen. Tectonic loading of the overriding European plate caused flexure of the subducting Iberian plate and formation of an elongated foredeep connected westward with the Atlantic Ocean. The uneven distribution of the Triassic evaporites caused the formation of a thrust salient in the central Pyrenees related to tectonic inversion of the pre-existing Mesozoic rift basins. This process ultimately resulted in the partitioning of the foreland basin and the isolation of the Ripoll Basin in the East from the Tremp-Graus and Ainsa-Jaca basins in central and western south-Pyrenees. The precise timing and the surface processes related to this reorganization of the sediment routing system remains not fully understood. Early tectono-stratigraphic reconstructions envisaged a scenario of isolation of the eastern Pyrenean Foreland basin in the early Eocene, while other recent studies on detrital zircon geochronometry suggest that the sedimentary transfer system in the Tremp-Graus basin connected upstream to the Ripoll basin until middle Lutetian times. In this contribution we discuss constraints on the early Eocene paleogeography of the south-eastern Pyrenees in the light of a revised chronostratigraphic scheme. We put forward a scenario that tries reconciling all available structural, stratigraphic, petrologic, geochronologic, and sedimentologic datasets.</p>

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