Ammonites and Nannofossils from the Campanian of Nalzen (Ariège, France)

Journal article

The Marnes de Saint-Cirac (Campanian) in the north-pyrenean unit known as the Nalzen "Basin" has yielded an ammonite fauna of more than 100 specimens, with Desmophyllites diphylloides (Forbes, 1846), Eupachydiscus cf. isculensis (Redtenbacher, 1873), Hoplitoplacenticeras (Hoplitoplacenticeras) marroti (Coquand, 1859), H. (H.) sp. juv., Glyptoxoceras aquisgranense (Schlüter, 1872a), Baculites sp. and Scaphites (Scaphites) haugi De Grossouvre, 1894. This is a fauna of the classic marroti zone of the lower Upper Campanian in the type region in Aquitaine. The ammonites are associated with a rich nannoflora of more than 90 species; the association of Broinsonia parca with Bukryaster hayi and Marthasterites furcatus indicates subzone CC18B of the Campanian in the scheme of Sissingh (1977, 1978), et Perch-Nielsen (1985). © 1992.

Authors: James Kennedy, W; Hansotte, M; Bilotte, M; Burnett, J

• Journal: Geobios
• Volume: 25
• Issue: 2
• Pages: 263-278
• Publication date: 1992-01-01
• DOI: 10.1016/S0016-6995(06)80404-3
• ISSN: 0016-6995
• Language: English