Upper Paleozoic charcoal remains from South America: Multiple evidences of fire events in the coal bearing strata of the Paraná Basin, Brazil

2011 ◽  
Vol 306 (3-4) ◽  
pp. 205-218 ◽  
Author(s):  
André Jasper ◽  
Dieter Uhl ◽  
Margot Guerra-Sommer ◽  
Mary Elizabeth Cerruti Bernardes-de-Oliveira ◽  
Neli Teresinha Galarce Machado
Keyword(s):  
South America ◽  
Upper Paleozoic ◽  
Paraná Basin ◽  
Parana Basin

Audiomagnetotelluric study in northeast region of Paraná Basin, South America

Geophysics ◽  
1989 ◽  
Vol 54 (7) ◽  
pp. 824-831 ◽  
Author(s):  
A. L. Padilha ◽  
N. B. Trivedi ◽  
J. M. da Costa ◽  
I. Vitorello ◽  
A. Dupis ◽  
...  
Keyword(s):  
South America ◽  
Gravity Anomaly ◽  
Volcanic Rocks ◽  
Rio Grande ◽  
Groundwater Exploration ◽  
Group A ◽  
Good Potential ◽  
Paraná Basin ◽  
Parana Basin ◽  
Bauru Group

We conducted natural‐source audiomagnetotelluric (AMT) soundings at 31 stations along a 215 km profile in the Paraná Basin (South America) across the previously postulated Araxá‐Rio Grande alignment. Our objective was to study the resistive structures of the upper layers of the sedimentary sequence; our results made it possible to map the surficial layer of sediments of the Bauru group, a layer that reaches thicknesses of up to 250 m. We concluded that AMT soundings have reasonably good potential for groundwater exploration in the region. The varying thicknesses of Bauru group sediments and the irregularities of their contact surface with resistive volcanic rocks of the Serra Geral formation along the profile were not known previously. Our AMT profile crossed an important positive gravity anomaly located near the Rio Grande (a natural boundary between the states of São Paulo and Minas Gerais, in Brazil) which has not been fully interpreted. Five sites for deeper MT soundings, which may throw light on possible causes of the gravity anomaly, were selected based on the conclusions from the AMT survey.

New material of Procolophon (Parareptilia: Procolophonoidea) from the Lower Triassic of Brazil, with remarks on the ages of the Sanga do Cabral and Buena Vista formations of South America

2006 ◽  
Vol 43 (11) ◽  
pp. 1685-1693 ◽  
Author(s):  
Sérgio Dias-da-Silva ◽  
Sean Patrick Modesto ◽  
Cesar Leandro Schultz
Keyword(s):  
South America ◽  
Lower Triassic ◽  
Dental Morphology ◽  
Early Triassic ◽  
Compelling Evidence ◽  
Buena Vista ◽  
New Material ◽  
Paraná Basin ◽  
Available Information ◽  
Parana Basin

We describe a large, fragmentary procolophonid skull and three large vertebrae from the Sanga do Cabral Formation, Paraná Basin, Lower Triassic of Brazil. Cranial and dental morphology allow us to refer the skull to the genus Procolophon; the fragmentary nature of the specimen, however, does not permit identification to species. The vertebrae are tentatively assigned to Procolophon. They are of a size expected for an individual represented by the skull, although the cranial and postcranial elements were not directly associated. The vertebrae are unusual for a procolophonid in exhibiting neural arches that are twice as broad as they are long, a dimension seen elsewhere among parareptiles only in pareiasaurs. A comparison of the manner of tetrapod preservation between the Sanga do Cabral and Katberg formations reveals that tetrapods in the former occur within conglomerates, whereas in the latter they are recovered mainly from mudstones. This taphonomic disparity may account for the absence in South America of the nearly cosmopolitan synapsid Lystrosaurus. The recent recognition of Permian tetrapods from the Buena Vista Formation of Uruguay, regarded widely to be a lateral equivalent of the Sanga do Cabral Formation, is assessed. We conclude that there is no compelling evidence of Permian tetrapods from the Buena Vista Formation and that the available information is suggestive of an Early Triassic age for that formation.

scholarly journals A stratigraphic chart of the Late Carboniferous/Permian succession of the eastern border of the Paraná Basin, Brazil, South America

2010 ◽  
Vol 29 (2) ◽  
pp. 381-399 ◽  
Author(s):  
Michael Holz ◽  
Almério B. França ◽  
Paulo A. Souza ◽  
Roberto Iannuzzi ◽  
Rosemarie Rohn
Keyword(s):  
South America ◽  
Late Carboniferous ◽  
Paraná Basin ◽  
Eastern Border ◽  
Parana Basin ◽  
Stratigraphic Chart

A new species of Petunia (Solanaceae) from Corrientes, Argentina

Phytotaxa ◽  
2019 ◽  
Vol 414 (6) ◽  
pp. 289-295
Author(s):  
JULIÁN ALEJANDRO GREPPI ◽  
JUAN CARLOS HAGIWARA ◽  
JOÃO RENATO STEHMANN
Keyword(s):  
New Species ◽  
South America ◽  
Sandy Soils ◽  
Southern South America ◽  
Fruiting Stage ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

We describe and illustrate a new species of Petunia, P. correntina, from southwestern Corrientes, Argentina, in southern South America. The species has funnel-form corolla with whitish-green tube and purple lobes, apex of longer filaments nearly straight, apex of medium filaments curved laterally and opposite each other, connivent anthers, bluish pollen, stigma located between anthers of the large and medium stamens and inflexed pedicels in fruiting stage. This suit of characters is unique into the genus. Few populations are known, inhabiting sandy soils of the Paraná basin. A key to the Argentinian species of Petunia with purple corolla is given.

The first record of Hirnantian Ostracoda in South America: implications for the biostratigraphy and paleozoogeography of the Paraná basin

2021 ◽  
pp. 1-11
Author(s):  
Lívio Reily de Oliveira Gonçalves ◽  
Dermeval Aparecido Do Carmo ◽  
Maria José Salas ◽  
Rodrigo Rodrigues Adôrno ◽  
Tõnu Meidla ◽  
...  
Keyword(s):  
South America ◽  
Type Species ◽  
Continuous Process ◽  
First Record ◽  
Index Species ◽  
First Occurrence ◽  
Paraná Basin ◽  
Parana Basin

Abstract Herein is reported the first occurrence of ostracodes from the Iapó Formation, an uppermost Ordovician unit of the Rio Ivaí Group in the Paraná basin, Brazil. Two ostracode species were identified in the Três Barras Farm section: Harpabollia harparum (Troedsson, 1918) and Satiellina paranaensis Adôrno and Salas in Adôrno et al., 2016 were recovered from dropstone-bearing shale overlying glaciogenic diamictites, a feature typical of Hirnantian (uppermost Ordovician) strata throughout Gondwana. The taxonomy of the Genus Harpabollia, as well as its type species Harpabollia harparum, was reviewed, and emended and new diagnoses were respectively proposed for each taxon. Occurrences of Harpabollia harparum and Satiellina species were common in areas influenced by cold waters. Additionally, the occurrence of Harpabollia harparum, an index species to the uppermost Ordovician of several stratigraphic units in Baltica and southern Gondwana, allowed us to infer a Hirnantian age for the deposits of the Iapó Formation. Other than being associated with Harpabollia harparum in Iapó Formation of the Paraná basin, Satiellina paranaensis is also found in lower levels of the Vila Maria Formation; therefore, these are also considered Hirnantian in age. Above these lower levels of the Vila Maria Formation, a well-dated Rhuddanian (lowermost Llandovery, Silurian) palynomorph assemblage is observed within the formation. These occurrences are evidence of a continuous process of sedimentary deposition during the Ordovician–Silurian transition in the Paraná basin.

First occurrence of jumping trackway in upper Paleozoic glacially-related deposits, Paraná Basin, Brazil, and paleoenvironmental implications

Ichnos ◽  
2021 ◽  
pp. 1-12
Author(s):  
Dhiego Cunha da Silva ◽  
Cristina Silveira Vega ◽  
Fernando Farias Vesely ◽  
Danielle Cristine Buzatto Schemiko ◽  
Robson Tadeu Bolzon
Keyword(s):  
Upper Paleozoic ◽  
First Occurrence ◽  
Paraná Basin ◽  
Parana Basin

Schellwienella clarkei (Orthotetida, Brachiopoda): a new species from the Devonian of the Paraná Basin, Brazil

2021 ◽  
pp. 1-15
Author(s):  
João Marcelo Pais de Rezende ◽  
Peter E. Isaacson
Keyword(s):  
New Species ◽  
South America ◽  
Shell Structure ◽  
Southern Brazil ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

Abstract Devonian orthotetides from South America have often been uncritically assigned to a limited number of broadly described species. Schellwienella clarkei n. sp. is described from the Ponta Grossa Formation, Paraná Basin, southern Brazil. These brachiopods had been identified as Schuchertella agassizi. Schellwienella clarkei n. sp. differs from Schuchertella agassizi on the basis of shell structure, dental plates, and cardinalia. UUID: http://zoobank.org/90ebc242-42c3-4bd7-9b63-461df05b6f28

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