Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian

This paper suggests an emendation to the diagnosis of Samaropsis mendesii Rigby, 1972 (Rio Bonito Formation, Santa Catarina State, Paraná Basin) on the basis of which the Samaropsis gigas Marques-de-Souza et Iannuzzi 2007 comes to be considered a junior synonym of this species. Adding the specimens...

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Main Authors: Juliane Marques-de-Souza, Roberto Iannuzzi
Format: Article
Language:English
Published: Universidade de São Paulo 2016-12-01
Series:Geologia USP. Série Científica
Subjects:
Online Access:http://www.revistas.usp.br/guspsc/article/view/124468
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author Juliane Marques-de-Souza
Roberto Iannuzzi
author_facet Juliane Marques-de-Souza
Roberto Iannuzzi
author_sort Juliane Marques-de-Souza
collection DOAJ
description This paper suggests an emendation to the diagnosis of Samaropsis mendesii Rigby, 1972 (Rio Bonito Formation, Santa Catarina State, Paraná Basin) on the basis of which the Samaropsis gigas Marques-de-Souza et Iannuzzi 2007 comes to be considered a junior synonym of this species. Adding the specimens previously considered as S. gigas from the Rio Grande do Sul State, the stratigraphic range of S. mendesii is extended to the uppermost portion of the Itararé Group. Also, we provide a comparative analysis with the closest Indian species Otofeista milleri (Feistmantel) Pant et al. (1985) (Karharbari beds). The comparison of the S. mendesii with the Indian material pointed to a strong morphometric correspondence between both, highlighting the potentiality of the use of this seed form in stratigraphic correlations due to the peculiarity of the morphology and the abundance of these seeds in Cisuralian (Sakmarian-Artinskian) strata of Gondwana.
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spelling doaj.art-c10cf3ae9b304fc697e6202fe10434592022-12-21T22:11:01ZengUniversidade de São PauloGeologia USP. Série Científica2316-90952016-12-0116410.11606/issn.2316-9095.v16i4p33-40Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower PermianJuliane Marques-de-Souza0Roberto Iannuzzi1Universidade Estadual de Roraima – UER, Departamento de Ciências Biológicas, Boa Vista.Instituto de Geociências – UFRGS, Departamento de Paleontologia e Estratigrafia, Porto Alegre.This paper suggests an emendation to the diagnosis of Samaropsis mendesii Rigby, 1972 (Rio Bonito Formation, Santa Catarina State, Paraná Basin) on the basis of which the Samaropsis gigas Marques-de-Souza et Iannuzzi 2007 comes to be considered a junior synonym of this species. Adding the specimens previously considered as S. gigas from the Rio Grande do Sul State, the stratigraphic range of S. mendesii is extended to the uppermost portion of the Itararé Group. Also, we provide a comparative analysis with the closest Indian species Otofeista milleri (Feistmantel) Pant et al. (1985) (Karharbari beds). The comparison of the S. mendesii with the Indian material pointed to a strong morphometric correspondence between both, highlighting the potentiality of the use of this seed form in stratigraphic correlations due to the peculiarity of the morphology and the abundance of these seeds in Cisuralian (Sakmarian-Artinskian) strata of Gondwana.http://www.revistas.usp.br/guspsc/article/view/124468Gondwanan seedsSynonymySamaropsis mendesiiSamaropsis gigasOtofeista milleriLower Permian.
spellingShingle Juliane Marques-de-Souza
Roberto Iannuzzi
Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian
Geologia USP. Série Científica
Gondwanan seeds
Synonymy
Samaropsis mendesii
Samaropsis gigas
Otofeista milleri
Lower Permian.
title Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian
title_full Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian
title_fullStr Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian
title_full_unstemmed Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian
title_short Revaluation of the Samaropsis mendesii Rigby, 1972 from Paraná Basin lower Permian
title_sort revaluation of the samaropsis mendesii rigby 1972 from parana basin lower permian
topic Gondwanan seeds
Synonymy
Samaropsis mendesii
Samaropsis gigas
Otofeista milleri
Lower Permian.
url http://www.revistas.usp.br/guspsc/article/view/124468
work_keys_str_mv AT julianemarquesdesouza revaluationofthesamaropsismendesiirigby1972fromparanabasinlowerpermian
AT robertoiannuzzi revaluationofthesamaropsismendesiirigby1972fromparanabasinlowerpermian