IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
Early angiosperm diversification: evidence from southern South America
Autor/es:
ARCHANGELSKY, S.; BARREDA, V.; PASSALIA, M.G.; GANDOLFO, M.A.; PRAMPARO, M.B.; ROMERO, E,J.; CUNEO, R.; ZAMUNER, A.; IGLESIAS, A.; LLORENS, M.; PUEBLA, G.G.; QUATTROCCHIO, M.E.; VOLKHEIMER, W.
Revista:
CRETACEOUS RESEARCH (PRINT)
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2009 vol. 30 p. 1073 - 1073
ISSN:
0195-6671
Resumen:
Abstract. In this report, we analyze the angiosperm fossil record (micro- and megafossil) from the central and southern basins of Argentina, southern South America, deposited between the Late Barremian (128.3 Ma) to the end of the Coniacian (85.8 Ma). Based on this analysis, three major phases in the evolution of the angiosperms in the southernmost region of South America are established as follows: the Late Barremian-Aptian, the latest Aptian-earliest Albian, and the Late Albian- Coniacian. The comparison between our fossil data set and those from the North America Potomac Group sequence and the European Western Portuguese and Algarve basins suggest that the evolution and diversification of the angiosperms at mid and high latitudes in both hemispheres occurred roughly synchronously.