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Titolo:
Floristic migration in South America during the Carboniferous: phytogeographic and biostratigraphic implications
Autore:
Iannuzzi, R; Rosler, O;
Indirizzi:
Univ Fed Rio Grande Sul, Dept Palaeontol & Estratigrafia, BR-91509900 Porto Alegre, RS, Brazil Univ Fed Rio Grande Sul Porto Alegre RS Brazil BR-91509900 BC, RS, Brazil Univ Contestado, Ctr Paleontol, BR-89300000 Mafra, SC, Brazil Univ Contestado Mafra SC Brazil BR-89300000 BC-89300000 Mafra, SC, Brazil
Titolo Testata:
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
fascicolo: 1-2, volume: 161, anno: 2000,
pagine: 71 - 94
SICI:
0031-0182(20000801)161:1-2<71:FMISAD>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
BASIN; PALEOBOTANY; PALYNOLOGY; ARGENTINA; BOLIVIA;
Keywords:
biostratigraphy; Carboniferous; floristic migration; phytogeography; South America;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
94
Recensione:
Indirizzi per estratti:
Indirizzo: Iannuzzi, R Univ Fed Rio Grande Sul, Dept Palaeontol & Estratigrafia, Av Bento Goncalves 9500, BR-91509900 Porto Alegre, RS, Brazil Univ Fed Rio Grande Sul Av Bento Goncalves 9500 Porto Alegre RS Brazil BR-91509900 BC
Citazione:
R. Iannuzzi e O. Rosler, "Floristic migration in South America during the Carboniferous: phytogeographic and biostratigraphic implications", PALAEOGEO P, 161(1-2), 2000, pp. 71-94

Abstract

New data on the Carboniferous flora of northern South America are combinedwith existing data for Gondwanaland to re-examine the floristic evolution of South America during the Carboniferous. The integration of paleobotanical, palynological, paleomagnetic, paleogeographic and paleoclimatologic data, makes it possible to reconstruct the floristic evolution of South Americaduring the Carboniferous as a dynamic process, that was mainly controlled by the northward movement of the South American plate towards the equator during the Carboniferous. Three Carboniferous floras, the 'cold' Archaeosigillaria-Lepidodendropsis-Frenguellia, the temperate Nothorhacopteris Flora and the tropical Euramerican Flora characterize South America. Intra-South American floristic migration is documented by the different age and composition of the Nothorhacopteris Flora. It is of late Early Carboniferous age innorthern South America (Bolivia, northeastern Brazil and Peru) whereas it is of Late Carboniferous age in southern South America (Argentina and southern Brazil). The flora was adapted to warm temperate climatic conditions indicating that southern South America moved into this climatic zone during the Late Carboniferous. This migration explains the different ages recorded for the same taxa (e.g., Nothorhacopteris) in northern and southern South America. Taxonomic differences between the northern and southern Nothorhacopteris Flora reflect Visean-Westphalian evolution. (C) 2000 Elsevier ScienceB.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 03:56:33