PERSONAL DE APOYO
MIRABELLI Sebastian Luis
A new megaflora (fossil wood, and leaves) from the miocene of southwestern patagonia
ROBERTO ROMAN PUJANA; PANTI CAROLINA; CUITIÑO JOSE IGNACIO; JUAN LEANDRO GARCIA MASSINI; SEBASTIAN LUIS MIRABELLI
ASOCIACION PALEONTOLOGICA ARGENTINA
Lugar: Buenos Aires; Año: 2015 p. 350 - 366
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 wood is carbonized and found asclasts within a conglomerate. It includes a few specimens representing Araucariaceae (Agathoxylon sp.), Podocarpaceae (Phyllocladoxylon sp.), Cu-pressaceae (Cupressinoxylon sp.) and two indeterminable angiosperms with anatomical features consistent with Nothofagaceae. Most leaves areassigned 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.