A5082465060- Plant Diversity and Evolution
- Paleontology and Stratigraphy of Fossils
- Plant and Fungal Species Descriptions
- Fern and Epiphyte Biology
- Geological formations and processes
- Plant and animal studies
- Geography and Environmental Studies
- Fish biology, ecology, and behavior
- Paleontology and Evolutionary Biology
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- Amazonian Archaeology and Ethnohistory
- Evolution and Paleontology Studies
- Fossil Insects in Amber
- Plant Parasitism and Resistance
- Botanical Research and Applications
- Fire effects on ecosystems
- Hydrocarbon exploration and reservoir analysis
- African history and culture studies
- History of Science and Natural History
- Geological and Geochemical Analysis
- Phytochemistry Medicinal Plant Applications
- Environmental and biological studies
- Geological and Geophysical Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
Universidade de São Paulo
2011-2021
Instituto de Geociencias
1978-2016
Hospital Universitário da Universidade de São Paulo
2016
Guarulhos University
2004-2014
Universidade do Estado de Minas Gerais
2014
Geoambiente (Brazil)
2014
Museum für Naturkunde
2004
Universidad San Pedro
1978-2002
Welwitschiaceae, a family in the Gnetales, is known today from only one extant species, Welwitschia mirabilis. This species distributed Namibian desert, along western coast of southern Africa, about 10 km inland coast. Very little fossil record this family. Lower Cretaceous megafossils various organs, assigned to are presented here. These fossils include young stems with paired cotyledons attached (Welwitschiella austroamericana n. gen. et sp.), isolated leaves (Welwitschiophyllum...
A fossil angiosperm from the Brazilian Crato Formation, Endressinia brasiliana n. gen. sp., is described. The consists of a branching axis with attached simple, narrowly ovate leaves and several terminal small flowers. One these multiparted flowering structures well preserved seems close to anthesis. Tepals, staminodes, apocarpous follicles show cellular details, such as ethereal cells. Broad staminodes bear lateral knobs that are interpreted glands. gynoecium ca. 20 free carpels. Among...
Abstract A fossil herbaceous angiosperm, Pluricarpellatia peltata gen. et sp. nov., is described from the Lower Cretaceous Crato Formation of northeastern Brazil. The description based on several nearly complete specimens with roots, cordate, excentrically peltate to centrally leaves, and flowering structures in situ seeds. seeds are smooth verrucate have micropyle hilum close together laminar placentation. shares characters extant Nymphaeales, such as a rhizomatous growth form simple,...
Abstract Morphology and anatomy of a fossil monocotyledon from the late Early Cretaceous extant monocots are compared. Anatomy was examined based on publications, while leaf morphology, especially venation, required new observations fresh herbarium material. Spixiarum kipea gen. et sp. nov. belongs most likely to Araceae, may be sister Orontioideae or is even part this tribe. Consequently, proto‐Araceae were present during in South America. The occurrence America indicates north Gondwana...
Abstract Morphology and anatomy of a fossil nymphaealean plant, Jaguariba wiersemana gen. nov. et sp. from the late Early Cretaceous northeastern Brazil, extant aquatic flowering plants are comparatively studied. Characteristic features indicate that is member Nymphaeaceae, may belong to Nymphaeoideae. The occurrence both Nymphaeaceae Cabombaceae (e.g., Pluricarpellatia peltata) in Lower contradicts recent molecular dating implying Late Cretaceous–Early Tertiary divergence for those...
Abstract. Conifers are common in the Early Cretaceous Crato flora. Sterile foliage shoots of several morphotypes occur. Good preservation these specimens allows detailed morphological and anatomical studies. Based on characters, two taxa Cheirolepidiaceae, Tomaxellia biforme Frenelopsis sp., identified. The palaeogeographic distribution genus currently extends from southern South America northwards to palaeoequatorial region. characters both might be interpreted as adaptations a warm...
<strong class="journal-contentHeaderColor">Abstract.</strong> Fossil conifers from the Early Cretaceous, most likely late Aptian, Crato Formation were studied. The excellent preservation of several those fossils allowed detailed investigations leaf epidermis by light microscope (LM) and scanning electron (SEM). Members two conifer taxa recognized: Araucariaceae are represented a female cone cf. <i>Araucaria</i> spec. A juvenile (<i>Araucariostrobus spec.</i>) sterile foliage shoots...
Abstract Hexagyne philippiana gen. et sp. nov. represents the first macrofossil piperalean taxon from Early Cretaceous (Aptian). The fossil material northern Gondwana consists of a twig with well‐preserved leaves and characteristic venation pattern plus attached several flowers combined in raceme. new shares many characters, such as leaf shape pattern, well flower morphology, including clearly developed perianth six fused carpels, extant Aristolochiaceae (sensu lato) and/or related clades....
Tewari, R., Pandita, S.K., Agnihotri, D., Pillai, S.S.K. & Bernardes-De-Oliveira, M.E.C., September 2012. An Early Permian Glossopteris flora from the Umrer Coalfield, Wardha Basin, Maharashtra, India. Alcheringa 36, 359–376. ISSN 0311-5518. A rich and well-preserved Glossopteris-dominated plant fossil assemblage is described Barakar Formation of Makardhokra open-cast projects, Nagpur District, The includes equisetalean axes, cordaitalean leaves (Noeggerathiopsis hislopii), Gangamopteris...
The genus Lycopodites, which encompasses the herbaceous forms of lycopsids, presents broad time and spacial distribution during Paleozoic in Northern Hemisphere, with its initial records dating from European Devonian. As to Gondwanan Paleozoic, this moment, only Lycopodites amazonica Dolianiti had been reported for Amazonian Middle Devonian (Curuá Group). Thus, specimens study such as sp., coming sedimentary rocks Itararé Subgroup, São Paulo State, riograndensis sp. nov., collected Rio...