A5022424592- Plant Diversity and Evolution
- Geology and Paleoclimatology Research
- Plant and Fungal Species Descriptions
- Plant Taxonomy and Phylogenetics
- Historical and socio-economic studies of Spain and related regions
- Medicine and Dermatology Studies History
- Paleontology and Stratigraphy of Fossils
- Mediterranean and Iberian flora and fauna
- Plant Parasitism and Resistance
- Polar Research and Ecology
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2024
National University of La Rioja
2024
Servicio Geológico Minero Argentino
2024
Bernardino Rivadavia Natural Sciences Museum
2017
A new megaflora composed of fossil woods and leaves is described. The bearing sediments overlie the Santa Cruz Formation (early Miocene), making it one youngest megafloras described from southern Patagonia. carbonized found as clasts within a conglomerate. It includes few specimens representing Araucariaceae (Agathoxylon sp.), Podocarpaceae (Phyllocladoxylon Cupressaceae (Cupressinoxylon sp.) two indeterminable angiosperms with anatomical features consistent Nothofagaceae. Most are assigned...
Conifer fossil woods represent 54% of an assemblage 116 specimens collected from sediments the Sobral Formation in Seymour (Marambio) Island, Western Antarctica. These are anatomically described detail and assigned to seven fossil-species following fossil-genera: Agathoxylon (Araucariaceae), Podocarpoxylon, Phyllocladoxylon, Protophyllocladoxylon (Podocarpaceae), Cupressinoxylon (Podocarpaceae/Cupressaceae). The conifer wood reveals that most common those Agathoxylon, therefore indicating a...
Background and aims: The vascular flora of Sierra de Velasco from La Rioja Province (northwestern Argentina), belonging to the extra-Andean range Sierras Pampeanas, has not been systematically studied. goal this work was describe plant diversity along its altitudinal gradient (1500-4300 m). M&M: Plant collections 2021 2024 in Costa Riojana zone Velasco, were carried out. Specimens processed determined, then deposited UNCAT herbarium at Centro Regional Investigaciones y Transferencia...