Palynomorphs in Holocene sediments from a paleolagoon in the coastal plain of extreme southern Brazil
AUTOR(ES)
Masetto, Ebráilon, Lorscheitter, Maria Luisa
FONTE
Acta Bot. Bras.
DATA DE PUBLICAÇÃO
2014-06
RESUMO
This paper presents the results of a qualitative palynological analysis of a 140 cm-thick section of Holocene sediments from a paleolagoon, representing the last 2600 years, taken from an outcrop at Hermenegildo Beach (33º42'S; 53º18'W), located in the municipality of Santa Vitória do Palmar, in the state of Rio Grande do Sul, Brazil. Samples were treated with hydrochloric acid, hydrofluoric acid and potassium hydroxide, after which they were subjected to acetolysis and mounted on glycerin-coated slides for light microscopy analysis. Among the 48 palynomorphs identified were 25 fungi, eight algae, three bryophytes, and 12 pteridophytes. Brief descriptions and illustrations of each palynomorph are presented, together with ecological data from the organism of origin when possible. Our findings will serve as reference material for paleoenvironmental studies in the coastal plain of southern Brazil.
Documentos Relacionados
- Paleoenvironmental evolution of the coastal plain of Southern Brazil: palynological data from a Holocene core in Santa Catarina State
- Cordão Formation: loess deposits in the southern coastal plain of the state of Rio Grande do Sul, Brazil
- Epiphytic ferns in swamp forest remnants of the coastal plain of southern Brazil: latitudinal effects on the plant community
- Natural regeneration in a quaternary coastal plain in southern Brazilian Atlantic Rain forest
- Physiological Diversity and Distributions of Heterotrophic Bacteria in Deep Cretaceous Sediments of the Atlantic Coastal Plain