Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/9152
Type: Artigo de periódico
Title: Record of the genus Lycopodites in the Lower Permian of Paraná Basin, Brazil
Author: Salvi, Juliana
Jasper, André
Ricardi-Branco, Fresia
Bernardes-de-Oliveira, Mary Elizabeth C.
Guerra-Sommer, Margot
Abstract: The genus Lycopodites, which encompasses the herbaceous forms of the lycopsids, presents broad time and spacial distribution during the Paleozoic in the Northern Hemisphere, with its initial records dating from the European Devonian. As to Gondwanan Paleozoic, to this moment, only Lycopodites amazonica Dolianiti had been reported for the Amazonian Middle Devonian (Curuá Group). Thus, the specimens reported in this study such as Lycopodites sp., coming from sedimentary rocks of the Itararé Subgroup, São Paulo State, and Lycopodites riograndensis sp. nov., collected in Rio Bonito Formation, Rio Grande do Sul, represent the oldest fertile forms recorded for Gondwana and the first ones to be described for the Paraná Basin. Its presence in layers, deposited after the end of the Neopaleozoic Glaciation, shows the appearance of new taxa in high latitudes, as well as the diversity of the lycopsids present in the Basin, previously indicated through the abundance of spores associated to the Class Lycopsida present in the palinomorphous assemblages.
O gênero Lycopodites, que engloba formas herbáceas de licópsidas, apresenta ampla distribuição temporal e espacial durante o Paleozóico no Hemisfério Norte, iniciando seu registro no Devoniano da Europa. Já no Paleozóico do Gondwana, até o presente momento, somente Lycopodites amazonica Dolianiti havia sido reportada para o Devoniano Médio da Amazônia (Grupo Curuá). Assim, os exemplares reportados no presente trabalho como Lycopodites sp., provenientes de rochas sedimentares do Subgrupo Itararé, SP, e Lycopodites riograndensis sp. nov., coletados na Formação Rio Bonito, RS, representam as formas férteis mais antigas registradas para o Gondwana e as primeiras a serem descritas para a Bacia do Paraná. A sua presença em camadas depositadas após o término da glaciação neopaleozóica, evidencia o ingresso de novos taxa em latitudes altas, bem como a diversidade das licópsidas presentes na Bacia, já esboçada através dos abundantes esporos associados à Classe Lycopsida presentes nas assembléias de palinomorfos.
Subject: Lycopodites sp.
Lycopodites riograndensis sp. nov.
Gondwana
Permiano Inferior
Bacia do Paraná
Lycopodites sp.
Lycopodites riograndensis sp. nov.
Gondwana
Lower Permian
Paraná Basin
Editor: Academia Brasileira de Ciências
Rights: aberto
Identifier DOI: 10.1590/S0001-37652008000300015
Address: http://dx.doi.org/10.1590/S0001-37652008000300015
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300015
Date Issue: 1-Sep-2008
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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