MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
A new megaflora (fossil woods and leaves) from the Miocene of southwestern Patagonia
PUJANA, ROBERTO; PANTI, CAROLINA; CUITIÑO, JOSÉ IGNACIO; GARCÍA MASSINI, JUAN; MIRABELLI, SEBASTIAN
ASOCIACION PALEONTOLOGICA ARGENTINA
Lugar: Buenos Aires; Año: 2015 vol. 52 p. 350 - 350
A new megaflora composed of fossil woods and leaves is described. The bearing sediments overlie the Santa Cruz Formation (earlyMiocene), making it one of the youngest fossil megafloras described from southern Patagonia. The fossil woods is carbonized and found asclasts within a conglomerate. It includes a few specimens representing Araucariaceae (Agathoxylon sp.), Podocarpaceae (Phyllocladoxylon sp.),Cupressaceae (Cupressinoxylon sp.) and two indeterminable angiosperms with anatomical features consistent with Nothofagaceae. Most leavesare assigned to Nothofagaceae while a few specimens are related to Lauraceae, Typhaceae, Leguminosae, and a conifer. The recovered assemblagesuggests a temperate climate similar to that of northern Patagonia today, inhabited by extant relatives of the fossils described herein.