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Revision of the fossil genus Clypeina (Michelin, 1845), Chlorophyta, Dasycladales, Polyphysaceae. Systematic position of Clypeina sulcata (Alth, 1882), C. jurassica (Favre & Richard, 1927), and C. inopinata Favre, 1932
Bruno R.C. Granier, Alexandre Lethiers

Building: Muséum d'Histoire Naturelle de Genève
Room: Amphithéâtre
Date: 2018-12-06 09:00 AM – 09:20 AM
Last modified: 2018-11-24

Abstract


Following a preliminary historical survey of the Cenozoic Clypeina marginoporella Michelin, 1845, which is the type of the genus, and of the Mesozoic Clypeina sulcata (Alth, 1882), the point was made that both species may not be ascribed to the same genus. Accordingly, a new genus is introduced with C. sulcata as type-species. In addition, the generic diagnosis of Clypeina is amended (i.e., shortened) in order to exclude all features that are not present in its type. A rather large collection of algae was used to illustrate some key characteristics of these algal taxa as well as few features rarely observed in C. sulcata.