A5060528032- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Marine Biology and Ecology Research
- Evolution and Paleontology Studies
- Ichthyology and Marine Biology
- Plant Diversity and Evolution
- Paleontology and Evolutionary Biology
- Plant and Fungal Species Descriptions
- Geomagnetism and Paleomagnetism Studies
- Plant and animal studies
National University of Tierra del Fuego
2017-2022
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2022
Abstract The James Ross Basin, in the northern Antarctic Peninsula, exposes which is probably world thickest and most complete Late Cretaceous sedimentary succession of southern high latitudes. Despite its very good exposures varied abundant fossil fauna, precise chronological determination infill still lacking. We report results from a magnetostratigraphic study on shelfal rocks Marambio Group, southeastern Antarctica. studied covers ~1,200 m‐thick stratigraphic interval within Hamilton...
The Snow Hill Island Formation (SHIF; late Campanian - early Maastrichtian) crops out in the northeast of Antarctic Peninsula and constitutes basal part Campanian-early Maastrichtian sedimentary succession James Ross Basin (NG Sequence). Its major exposures occur at Vega islands. Several fossil-bearing localities have been identified SHIF providing a valuable fauna invertebrates vertebrates, flora. Our study focuses on vertebrate recovered Gamma Cape Lamb members SHIF. marine assemblages...
Belying previous interpretations on its rarity in southern latitudes, Gaudryceras de Grossouvre is well represented the Santonian—Campanian of Antarctica. The study more than 300 specimens from Santa Marta, Rabot and Snow Hill Island Formations designates five species that characterize four successive stratigraphic intervals: 1) cf. G. strictum, Santonian, Alpha Member, lower part Marta Formation; 2) santamartense sp. nov., Santonian—early Campanian, mid 3) brandyense late early...
Elasmosaurids are one of the most abundant fossil marine reptile groups identified from Upper Cretaceous strata Antarctica. However, documented record intact elasmosaurid skull remains is scarce. In this study, we describe first non-aristonectine skeleton Antarctica that preserves an associated lower jaw. This specimen displays a unique character state combination including three symphyseal alveoli, angle between mandibular rami exceeding 90°, and absence ventral sulcus or keel....
Santonian to Maastrichtian deposits of the James Ross Basin. The early mid-Campanian A