À propos de l'algue Elianella elegans Pfender & Basse, 1948, et ses soit-disants semblables, avec la description de Elianella brasiliana n.sp. Révision de la Collection Juliette Pfender. 1e partie

  • Granier, Bruno
  • Dias-Brito, Dimas
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Publication date
April 2016
Publisher
INIST-CNRS
ISSN
1634-0744
Journal
Carnets de géologie (Notebooks on geology)
Citation count (estimate)
2

Abstract

According to some authors, the three fossil algal forms discussed in this paper, Cordilites cretosus (Reus, 1846), Elianella elegans Pfender & Basse, 1948, and Parachaetetes asvapatii Pia in Rao & Pia, 1936, are synonyms. However, we document that they represent three discrete species. The genus Elianella Pfender & Basse, 1948, gets unique features that make it easy to discriminate; we describe a new species from Albian limestones of Brazil. The other two genera, Cordilites Počta, 1887, and Parachaetetes Deninger, 1906, share some common features, such as having a thallus made of a lattice-network with columns (filaments) and rows. However, on the basis of their diagnostic criteria, the species Cordilites cretosus and Parachaetetes asvapati...

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