Hepaticites iporangae n. sp., Rio Bonito Formation, Early Permian (Sakmarian), Paraná Basin, Brazil, Western Gondwana

2011 ◽  
Vol 85 (2) ◽  
pp. 360-368 ◽  
Author(s):  
Fresia Ricardi-Branco ◽  
Rafael Souza Faria ◽  
André Jasper ◽  
Margot Guerra-Sommer
Keyword(s):  
New Species ◽  
South America ◽  
Rio Grande ◽  
Climatic Conditions ◽  
Formal Description ◽  
Early Permian ◽  
Rio Grande Do Sul ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

The formal description of a liverwort from the Paraná Basin is presented. The fossil was found in the Rio Bonito Formation, Early Permian (Sakmarian), and is identified as a new species of the genus Hepaticites, named H. iporangae n. sp. The samples studied were collected from the macrofossil-rich roof-shale layer of the Quitéria Outcrop in the municipality of Encruzilhada do Sul, state of Rio Grande do Sul, Brazil. H. iporangae is one of the oldest liverworts reported from South America. The fossil described here provides more evidence of the relative diversity of liverworts in Paleozoic Gondwana despite the severe climatic conditions during the glaciations of the Permo-Carboniferous.

Description of a new species of the Melanorivulus pictus species-group (Cyprinodontiformes: Rivulidae) from the Rio Paraná basin in Brazil

Zootaxa ◽  
2020 ◽  
Vol 4852 (1) ◽  
pp. 125-132
Author(s):  
ERIC VENTURINI YWAMOTO ◽  
DALTON TAVARES BRESSANE NIELSEN ◽  
CLAUDIO OLIVEIRA
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Rio Grande ◽  
Species Group ◽  
Sao Paulo ◽  
Paulo State ◽  
Paraná Basin ◽  
Parana Basin ◽  
Ventral Area ◽  
A New Species

A new species of the genus Melanorivulus belonging to the Melanorivulus pictus species group is herein described, from a tributary of the Rio Grande, Rio Paraná basin, São Paulo State, Brazil. The new species can be distinguished from all other species of the Melanorivulus pictus species group by the unique presence of sides of body of males light bluish gray with 10–12 oblique red bars, 8 of which chevron-like, bifurcated and complete, i.e., running from dorsum to ventral area, and 2–4 incomplete, with vertices of the chevron-like bars along midbody, pointing forward. Comments on the putative relationships of the new species, as well as concerning its conservation status, are presented. 

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.

scholarly journals Progress on the palynostratigraphy of the Permian strata in Rio Grande do Sul State, Paraná Basin, Brazil

2005 ◽  
Vol 77 (2) ◽  
pp. 353-365 ◽  
Author(s):  
Paulo A. Souza ◽  
Marleni Marques-Toigo
Keyword(s):  
Rio Grande ◽  
Middle Permian ◽  
Early Permian ◽  
Rio Grande Do Sul ◽  
Reference Sections ◽  
New Material ◽  
Paraná Basin ◽  
Parana Basin

A review of published papers and results of analysis of new material have allowed improvements on the palynostratigraphy of the Permian strata of the Paraná Basin in Rio Grande do Sul State. Based on first and last occurrences of certain species of pollen taxa, two palynozones are formalized, these are the Vittatina costabilis and Lueckisporites virkkiae Interval Zones, in ascending order. The Vittatina costabilis Interval Zone is subdivided into two units, in ascending order the Protohaploxypinus goraiensis and the Hamiapollenites karrooensis Subzones, and is recognized from the glacial (Itararé Group) and post-glacial sequence (Rio Bonito Formation and the base of the Palermo Formation). The Lueckisporites virkkiae Interval Zone occurs from the uppermost Rio Bonito Formation, through the Palermo and Irati formations, and into the Serra Alta and Teresina formations. The main characteristics and reference sections are established, as well as additional criteria to recognize biostratigraphical units, in accordance with the International Stratigraphic Guide. Palynostratigraphical correlation suggests that the Vittatina costabilis Zone concerns the Early Permian (early Cisuralian), while the Lueckisporites virkkiae is regarded as late Early Permian to early Middle Permian (late Cisularian to early Guadalupian).

Hepaticites iporangae Ricardi-Branco, Faria, Jasper, and Guerra-Sommer, 2011 from the early Permian of the Paraná Basin, Brazil, is not a liverwort but a tracheophyte

2016 ◽  
Vol 90 (4) ◽  
pp. 632-639 ◽  
Author(s):  
Dieter Uhl ◽  
André Jasper ◽  
Talyssa Valerius ◽  
Joseline Manfroi ◽  
Margot Guerra-Sommer ◽  
...  
Keyword(s):  
Rio Grande ◽  
Type Material ◽  
New Combination ◽  
Early Permian ◽  
Rio Grande Do Sul ◽  
New Material ◽  
Paraná Basin ◽  
Parana Basin

AbstractFrom new and more complete material, which includes frond fragments with casts of tracheid remains of the rachis, it can be demonstrated that the putative liverwort Hepaticites iporangae Ricardi-Branco, Faria, Jasper, and Guerra-Sommer, 2011, from the early Permian Rio Bonito Formation (Sakmarian) of the Paraná Basin, Brazil, is not a bryophyte but a tracheophyte. The new material was collected from the same locality and layer as the type material, in the Quitéria outcrop in the municipality of Encruzilhada do Sul, state of Rio Grande do Sul, Brazil. From the morphology of the deeply dissected pinnatifid pinnules with narrow laminar lobes, the taxon is provisionally reassigned to the genus Rhodeopteridium. Thus we propose the new combination ‘Rhodeopteridium’ iporangae new combination for this taxon. This new systematic interpretation contributes to our understanding of early liverworts (by removing Hepaticites iporangae as a possible taxon thereof) and clarifies an issue of diversity of the flora of the early Permian Rio Bonito Formation resulting from the original misidentification.

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

scholarly journals A new species of the catfish genus Centromochlus (Siluriformes: Auchenipteridae: Centromochlinae) from the upper rio Paraná basin, Brazil

2015 ◽  
Vol 13 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Luisa Maria Sarmento-Soares ◽  
José Luís Olivan Birindelli
Keyword(s):  
New Species ◽  
South America ◽  
Sao Paulo ◽  
São Paulo ◽  
Coastal Rivers ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin ◽  
A New Species

Centromochlus comprises twelve species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, coastal rivers of Suriname, Amazon, upper Paraná and São Francisco basins. The new species is described from the upper rio Paraná based on material collected in 1965 during the construction of the UHE Ilha Solteira, São Paulo, Brazil. The new species is easily distinguished from all congeners due to absence of adipose fin, a condition otherwise restricted to Gelanoglanis nanonocticolus, among centromochlin catfishes. The new species comprises small catfishes (adults ranging from 35 to 39 mm SL), in which modified anal fin of males is devoid of denticulations or spines, and most posterior rays reduced in length. In addition, Tatia simplex Mees is transferred to Centromochlus and its generic reassignment discussed.

Calydorea minuana, a new species of Iridaceae from Río de La Plata Grasslands, South America

Phytotaxa ◽  
2016 ◽  
Vol 253 (1) ◽  
pp. 81
Author(s):  
LEONARDO PAZ DEBLE ◽  
FABIANO DA SILVA ALVES ◽  
ANABELA S. DE OLIVEIRA-DEBLE
Keyword(s):  
New Species ◽  
South America ◽  
Rio Grande ◽  
Rio De La Plata ◽  
Rio Grande Do Sul ◽  
Río De La Plata ◽  
La Plata ◽  
Dark Violet ◽  
Dark Blue ◽  
A New Species

A new species of Calydorea is described and illustrated for northern Uruguay and southwest Rio Grande do Sul State, Brazil. This new species is closely related to C. nuda however, differs by its dark-blue or dark violet-blue flowers, stamens with white-cream filaments and bigger anthers, and style branches free towards the top. Data on phenology, geographic distribution, conservation, and habitat are provided. Moreover, a table to segregate this new species from its related species, and an identification key for the Calydorea species occurring in the sub-region of “Northern Campos” of Río de La Plata Grasslands are supplied.

Depositional cyclicity and paleoecological variability in an outcrop of Rio Bonito formation, Early Permian, Paraná Basin, Rio Grande do Sul, Brazil

2006 ◽  
Vol 21 (3) ◽  
pp. 276-293 ◽  
Author(s):  
André Jasper ◽  
Rualdo Menegat ◽  
Margot Guerra-Sommer ◽  
Miriam Cazzulo-Klepzig ◽  
Paulo Alves de Souza
Keyword(s):  
Rio Grande ◽  
Early Permian ◽  
Rio Grande Do Sul ◽  
Paraná Basin ◽  
Parana Basin
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