Obliquorhynchia (gen. nov.): An asymmetric brachiopod from the middle Danian Faxe Formation, Denmark

Bulletin of the Geological Society of Denmark

Makovicky, E. 2011-03-11.¹  Karup-Møller, S.¹ 

[1] Mineral X, a new thalcusite homologue from the Ilímaussaq complex, South Greenland
©2011 by Bulletin of the Geological Society of Denmark, Vol. 59, pp. 13–23.
ISSN 0011–6297. (www.2dgf.dk/publikationer/bulletin).

关键词: Tl-minerals;    thalcusite homologous series;    low S-fugacities;    chalcothallite;    cuprostibite;    ussingite veins;    South Greenland;    Ilímaussaq;    Taseq.;   

学科分类：地球科学(综合)

来源: Dansk Geologisk Forening

【 摘 要 】

The diverse brachiopod fauna from the middle Danian cool-water coral mounds of the Faxe Formation, Denmark, includes the new genus Obliquorhynchia that exhibits an asymmetric folding of the frontal commissure, a rare feature in brachiopods. Two of the most abundant brachiopod species found in the Faxe Formation, ‘Rhynchonella’ flustracea and ‘Rhynchonella’ faxensis, are considered conspecific and are both referred to Obliquorhynchia. In the literature, the species name flustracea has been ascribed to von Schlotheim. However, the original species name proposed by von Schlotheim in his catalogue (1832, 65, no 62) was lustraceus. This remained a nomen nudum until von Buch (1834) published a description based on the material of von Schlotheim and changed the name to flustracea. The species is thus ascribed to von Buch. A lectotype for Obliquorhynchia flustracea (von Buch 1834) is designated and illustrated here.

【 授权许可】

Unknown