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 Xenacanthiformes shark (Chondrichthyes, Elasmobranchii) from the Late Paleozoic Rio do Rasto Formation (Paraná Basin), Southern Brazil

2014 ◽  
Vol 86 (1) ◽  
pp. 135-145 ◽  
Author(s):  
VICTOR E. PAULIV ◽  
ELISEU V. DIAS ◽  
FERNANDO A. SEDOR ◽  
ANA MARIA RIBEIRO
Keyword(s):  
New Species ◽  
Longitudinal Section ◽  
Optical Microscope ◽  
Late Paleozoic ◽  
Southern Brazil ◽  
Fossil Assemblage ◽  
Transversal Section ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

The Brazilian records on Xenacanthiformes include teeth and cephalic spines from the Parnaíba, Amazonas and Paraná basins. This work describes a new species of Xenacanthidae, collected in an outcrop of Serrinha Member of Rio do Rasto Formation (Wordian to Wuchiapingian), Paraná Basin, municipality of Jacarezinho, State of Paraná. The teeth of the new species are two or three-cuspidated and the aboral surface show a smooth concavity and one rounded basal tubercle. The coronal surface presents one semi-spherical and subcircular coronal button, and also two lateral main cusps and one central (when present) with less than one fifth of the size of the lateral cusps in the labial portion. The lateral cusps are asymmetric or symmetric, rounded in transversal section, lanceolate in longitudinal section, devoid of lateral carinae and lateral serrations, and with few smooth cristae of enameloid. In optical microscope the teeth show a trabecular dentine (osteodentine) base, while the cusps are composed by orthodentine, and the pulp cavities are non-obliterated by trabecular dentine. The fossil assemblage in the same stratigraphical level and in the whole Rio do Rasto Formation indicates another freshwater record for xenacanthid sharks.

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 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.

scholarly journals A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the upper rio Paraná basin, Southern Brazil

2007 ◽  
Vol 5 (4) ◽  
pp. 435-442 ◽  
Author(s):  
Fernando C. Jerep ◽  
Oscar A. Shibatta ◽  
Cláudio H. Zawadzki
Keyword(s):  
New Species ◽  
Southern Brazil ◽  
Paraná Basin ◽  
Tooth Number ◽  
Parana Basin ◽  
A New Species

A new species of Hypostomus with large and spaced light roundish spots is described from the upper rio Paraná basin. Hypostomus multidens new species is distinguished from all remaining congeners with light spots on a darker background by two independent characters: the presence of teeth with two symmetrical cusps, and a high tooth number in each dentary (122267, mean 196.8) and premaxilla (115-260, mean 190.8).

scholarly journals A new species of Sphenacanthid (Chondrichthyes, Elasmobranchii) from the Rio do Rasto Formation (Paraná Basin), southern Brazil

2012 ◽  
Vol 15 (03) ◽  
pp. 243-250 ◽  
Author(s):  
Victor Eduardo Pauliv ◽  
Eliseu Vieira Dias ◽  
Fernando Antonio Sedor
Keyword(s):  
New Species ◽  
Southern Brazil ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species

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.

scholarly journals Iheringichthys syi (Siluriformes: Pimelodidae), a new pimelodid species from upper Paraná basin, Brazil

2012 ◽  
Vol 10 (1) ◽  
pp. 45-52
Author(s):  
María de las Mercedes Azpelicueta ◽  
Heraldo A. Britski
Keyword(s):  
New Species ◽  
Standard Length ◽  
Anterior Margin ◽  
Head Length ◽  
Dorsal Fin ◽  
Eye Diameter ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin ◽  
A New Species

We describe a new species of pimelodid catfish of the genus Iheringichthys from the upper Paraná basin, Brazil. Iheringichthys syi n. sp. is distinguished by the comparatively fine serration along the anterior margin of the pectoral-fin spine, an adpressed dorsal-fin remote from the adipose-fin origin, a large eye (23.2-31.2% of head length), narrow interorbital (16.2-23.0% of head length), long snout (42.0-51.0% of head length), long postorbital length (30.6-34.0% of head length), low adipose fin (4.8-7.8% of standard length), eye diameter 97.0-140.0% of interorbital length, and body with numerous, small dots irregularly scattered on flanks, especially marked on anterior half of flank.

scholarly journals Astyanax totae, a new characid species (Teleostei: Characidae) from the upper rio Iguaçu basin, southeastern Brazil

2005 ◽  
Vol 3 (3) ◽  
pp. 383-388 ◽  
Author(s):  
Carolina Ferreira Haluch ◽  
Vinícius Abilhoa
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Southeastern Brazil ◽  
Caudal Fin ◽  
Dark Stripe ◽  
Fin Rays ◽  
Paraná Basin ◽  
Parana Basin ◽  
A New Species ◽  
Small Tributary

A new species of characid fish, Astyanax totae, is described from a small tributary in the upper drainage of the rio Iguaçu, Paraná basin, Brazil. The new species is distinct from most species of Astyanax by the vertically elongated humeral spot, slightly expanded above the lateral line to posterodorsal margin of opercle, followed by a midlateral dark stripe expanded from the humeral region to the median caudal-fin rays, maxilla with 2 to 5 teeth (usually 3) and 15 to 18 branched anal-fin rays.

First record of the tribe Diglottini from South America with description of Diglotta brasiliensis n. sp. (Coleoptera, Staphylinidae, Aleocharinae)

Zootaxa ◽  
2008 ◽  
Vol 1776 (1) ◽  
pp. 52 ◽  
Author(s):  
EDILSON CARON ◽  
CIBELE STRAMARE RIBEIRO-COSTA
Keyword(s):  
New Species ◽  
New Zealand ◽  
Sexual Dimorphism ◽  
South America ◽  
First Record ◽  
Southern Brazil ◽  
Rove Beetle ◽  
Fiji Islands ◽  
First Time ◽  
A New Species

The tribe Diglottini Eichelbaum, 1909 comprises two halophilous rove beetle genera Diglotta Champion, 1899, and Paradiglotta Ashe & Ahn, 2004. The tribe contains eight known species distributed in the Nearctic and West-Palaearctic regions, and also Fiji Islands and New Zealand. This tribe is recorded for the first time from South America with the description of a new species, Diglotta brasiliensis n. sp. from southern Brazil (Paraná). Characters of the mouthparts, aedeagus and spermatheca of the new species are illustrated and compared with other Diglotta species. Sexual dimorphism is reported for the first time in the genus.

scholarly journals Corumbataia britskii (Siluriformes: Loricariidae: Hypoptopomatinae) a new species from the upper Rio Paraná basin, Mato Grosso do Sul, Central Brazil

Zootaxa ◽  
2007 ◽  
Vol 1386 (1) ◽  
pp. 59-68 ◽  
Author(s):  
KATIANE M. FERREIRA ◽  
ALEXANDRE C. RIBEIRO
Keyword(s):  
New Species ◽  
Mato Grosso ◽  
Central Brazil ◽  
Paraná Basin ◽  
Parana Basin ◽  
Mato Grosso Do Sul ◽  
A New Species

A new Hypoptopomatinae, Corumbataia britskii, is described based on specimens recently collected in a tributary of the upper Rio Paraná basin, Mato Grosso do Sul State, Brazil. Corumbataia britskii differs from its congeners by having a more depressed head profile (vs. a more rounded head profile in C. cuestae and C. tocantinensis), by having a more developed and conspicuous tuft of enlarged odontodes on the tip of the supraoccipital (vs. its reduced condition found in C. cuestae and C. tocantinensis), and by heaving a partially enclosed arrector fossae (vs. an almost completely enclosed arrector fossae in C. cuestae and C. tocantinensis).

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