Tafoflora triássica da formação Santa Maria, RS, Brasil: II. Representantes de pteridospermopsida e pteridophylla

Authors

  • Carlos Alfredo Bortuluzzi Universidade Federal do Rio Grande do Sul; Instituto de Geociências
  • Margót Guerra-Sommer Universidade Federal do Rio Grande do Sul; Instituto de Geociências
  • Miriam Cazzulo-Klepzig Universidade Federal do Rio Grande do Sul; Instituto de Geociências

DOI:

https://doi.org/10.11606/issn.2316-8986.v15i0p105-115

Abstract

The palaeofloristic association of the Santa Maria Formation, Gondwana of the State of Rio Grande do Sul, represents a Dicroidium Flora, with elements related to the Pteridospermales, Equisetales, Ginkgoales, Coniferales and Pteridophylla. In this paper are described several species of Dicroidium (Gothan) Townrow 1957, which dominate the taphoflora and Tetraptilon Frenguelli 1950, a frond of uncertain systematic position

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Published

1984-01-01

Issue

Vol. 15 (1984)

Section

nao definida