Pseudokossmaticeras brandti Redtenbacher, 1873, an Upper Campanian marker fossil in northern Aquitaine, France
- A specimen of the upper Campanian marker ammonite Pseudokossmaticeras brandti (Redtenbacher, 1873) is described from the tuffeau facies at St. Cybard, Mouleydier, 10 km east of Bergerac, Dordogne, France. It was collected from 4-5 m above the Hippurities radiosus-Laperousia jouanetti biostrome that corresponds to the classic Dordonian stage of Coquand (1857), and confirms that the Dordonian is not equivalent to the Maastrichtian of Dumont.
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