Pleistocene Palaeobotany research in Portugal: The state of art (original) (raw)

Abstract

Although still very fragmentary, most evidence concerning Pleistocene ecosystems in Portugal, comes from karstic deposits where wood charcoal and mammalian bone remains constitute almost the unique source of information. Pleistocene palaeobotanical studies are extremely rare and the only studies came from Serra da Estrela and Setúbal Península series. Nevertheless, since the 1940’ the Portuguese Geologic Surveys (“Serviços Geológicos de Portugal”) identified some fluvial clayey layers inside stratigraphical series of Quaternary fluvial terraces, with botanic fossils. This virtually indicates the viability of a future Pleistocene Fluvial Paleobotanic research programme, whatever it might be. More recently, palynologic results from ocean cores collected on the Portuguese marine platform showed continental-derived pollen content, partly transported by Tagus and the Sado discharges. The potential interest of comparing both fluvial and marine pollen assemblages in the future seems promising. In this presentation, it will be provide a state-of-the-art on this issue and a first report on a preliminary inquiry concerning the re-observation of some of these contexts, with a special focus in the Alpiarça Region (Tagus River).

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