PALEOECOLOGIA DEL PALEOZOICO SUPERIOR ARGENTINO SOBRE LA BASE DE SUS PLANTAS FOSILES

Sergio Archangelsky

Abstract


The succession of Upper Paleozoic taphofloras from Argentina is presented. The palaeoecological significance of the main plant groups is discussed and palaeoclimatological conc1usions on these evidences are inferred. Following the pole po sitio n during these periods, as well as the palaeogeographical setting of South America, the palaeofloras were of a cold regime during the Lower Carboniferous, becoming slightly warmer during the Middle Carboniferous and temperate to warm in Upper Carboniferous-Lower Permian times, when the richest plant assemblages are found. During the Upper Permian the palaeoflora is slightly poorer due to changes in palaeoclimate, possible aridization.

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