INVESTIGADORES
PASSALIA Mauro Gabriel
artículos
Título:
Eocene Patagonia fossils of the Daisy family
Autor/es:
BARREDA, V.; PALAZZESI, L.; TELLERÍA, M.C.; KATINA, L.; CRISCI, J.V.; BREMER, K.; PASSALIA, M.G.; CORSOLINI, R.; RODRÍGUEZ BRIZUELA, R.; BECHIS, F.
Revista:
SCIENCE
Editorial:
AMER ASSOC ADVANCEMENT SCIENCE
Referencias:
Año: 2010 vol. 329 p. 1621 - 1621
ISSN:
0036-8075
Resumen:
We describe here a fossil capitulum unequivocally assignable to Asteraceae associated with dispersed pollen grains inMiddle Eocene [47.5 × 106 years ago (Ma)] rocks from northwestern Patagonia, southern South America. This finding of Eocene fossils with Mutisioideae-Carduoideae affinities in southern South America, together with those reported fromAfrica and Australia, suggests that an ancestral stock of Asteraceae may have formed part of a geoflora widespread across southern Gondwana before the establishment of effective dispersal barriers within this landmass.
