A5004700410- Paleontology and Stratigraphy of Fossils
- Plant Diversity and Evolution
- Geological formations and processes
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Coal and Its By-products
- Geological and Geophysical Studies
- Fire effects on ecosystems
- Paleontology and Evolutionary Biology
- Pleistocene-Era Hominins and Archaeology
- Plant Parasitism and Resistance
- Marine Biology and Ecology Research
- Fern and Epiphyte Biology
- Marine and coastal ecosystems
- Evolution and Paleontology Studies
- Plant and Fungal Species Descriptions
- Botanical Research and Applications
- Mineralogy and Gemology Studies
Universidade de São Paulo
2021
Universidade Federal do Rio Grande do Sul
2016-2020
Instituto de Geociencias
2016
The sedimentary sequence containing lignite deposits in Gurha quarry of the Bikaner-Nagaur Basin (Rajasthan) has been investigated. samples from and allied shale horizons were evaluated for petrographical, palynological, palynofacies organic geochemical inferences, to depict source flora reconstruct palaeodepositional conditions prevailed during sedimentation. An assessment hydrocarbon generation potential these also made. results revealed dominance huminite macerals phytoclasts matter (OM)...
The Solenoid Complex comprises a fossil wood assemblage with stratigraphic distribution restricted to the middle-late Kungurian, present in Western (Irati Formation, Paraná Basin, Brazil) and Eastern (Upper Barakar Interval of Indian basins) Gondwana. Its occurrence seems be related adaptation certain plant groups paleoenvironmental stress lowland niches coastal areas subject salinity variation. disappearance these forms latest Kungurian is probably linked cessation conditions, which...
Faunipollenites Bharadwaj is considered a junior synonym of Protohaploxypinus Samoilovich emend. Morbey. However, Indian workers claim it valid genus due to poorly defined corpus and absence folds in distal attachment. In India, standard method applied including the oxidization with HNO3 more than 48 hours (+10' KOH). We analyze effects that treatment on morphology pollen grains both genera samples from Permian India Brazil. The same are also processed HCl, HF, two 2' KOH slides mounted...
In this contribution we present the composition of Late Cretaceous / Paleocene dinoflagellate cyst assemblages found in Pelotas Basin, southern Brazil order to provide a first paleobiogeographical comparison between location, India and other former Gondwana continents: South America (Argentina Uruguay), Africa (Nigeria Western Ghana), Antarctica, Australia, New Zealand. A total 13 taxa, some endemic cosmopolitan were identified. The paleoenvironment members basins, as previously presented...
The present work details the results of palynological studies carried out in Umrer Coalfield Wardha Basin Maharashtra State, Central India. coalfield covers an area 4 sq. km and is characterized by three coal seams designated as bottom, middle top with partings. Statistical analysis palynomorphs from these sediments have revealed dominance radial monosaccate pollen grains genus Parasaccites subdominance non-striate bisaccate Scheuringipollenites association other typical early Permian taxa...
The pre-glossopterid macroflora from the Volpe Ranch, in Monte Mor (State of São Paulo), was deposited during an interglacial context Itararé Group. It is characterized by Paranocladus-Ginkgophyllum-Brasilodendron Association and included middle-basal part Group outcrop, NE Paraná Basin. similar to Argentine macrofloristic association Krauselcladus-Asterotheca Phytozone (ex-Interval Zone) its palynofloristic contents belong Crucisaccites monoletus Palynozone (Kasimovian Gzhelian). conifers...
An overview of the composition paleoflora preserved in clay-siltstones Siderópolis Member, Rio Bonito Formation is presented order to establish phytostratigraphical comparisons with other Late Pennsylvanian and Cisuralian paleofloras Paraná Basin. The Formation, most important coal bearing lithostratigraphic units Basin belongs Gondwana I Supersequence (Pennsylvanian-Early Triassic). occurs uppermost layers Santa Catarina coalfield four distinct localities State Catarina: Lauro Muller,...
This contribution focuses on the relationship between Siderópolis Member paleoflora and Indian Gondwanan paleofloras, especially with those of Cisuralian stages, thus providing additional criteria for correlation Western Eastern coal successions in lower Permian interval. Despite large number species common Karharbari Stage (Sakmarian) flora, exhibits a higher percentage diversification genus Glossopteris, which is less expressive floras, while declining Gangamopteris-Noeggerathiopsis...