Data/hora: 08/06/2024 09:47:07

Provedor de dados: | 42
País: | Brazil
Título: | Dispersal Syndromes of fossil Seeds from the Lower Permian of Paraná Basin, Rio Grande do Sul, Brazil
Autores: | Souza,Juliane M.; Iannuzzi,Roberto.
Data: | 2012-03-01
Ano: | 2012
Palavras-chave: | Samaropsis; Cordaicarpus; Dispersal syndromes; Ecological groups; Lower Permian; Paraná Basin.
Resumo: | The morphological analysis of seeds has been an important subject in modern ecological studies, once it provides evidence about the biology and adaptations of the parent plant. However, this kind of study has been restricted to the ecology of modern plants and is rarely used in interpretations of Paleozoic data. From the understanding of dispersal syndromes analysis as an important tool to paleoecological reconstruction, this study provides a first approach using this tool with seeds from the Lower Permian strata of southern Paraná Basin in Rio Grande do Sul. Based on previously classified seeds and using their biological and taphonomic data, the syndrome of dispersal was interpreted, and their placement in successional groups (pioneer, early-successional and later-successional) was suggested. Seven morphospecies were analyzed: Samaropsis gigas, representing a later-successional species living in water bodies with hydrochory as its dispersal syndrome; Samaropsis kurtzii, typical of early-successional species showing anemochory as its dispersal syndrome and living in distal areas in relation to water bodies; Samaropsis aff. S. millaniana, Cordaicarpus aff. C. brasilianus, Cordaicarpus cerronegrensis and Cordaicarpus truncata have typical characteristics of pioneer plants, exhibiting barochory as their primary dispersal syndrome with other syndromes associated.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100006
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652012000100006
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.84 n.1 2012
Fonte: | info:eu-repo/semantics/openAccess