Chitinozoan biostratigraphy of the Upper Ordovician of Faulx-les-Tombes (central Condroz Inlier, Belgium)

The chitinozoan biostratigraphy of the Upper Ordovician Vitrival-Bruyère and Fosses formations (Bois de Presles and Faulx-les-Tombes members) in the Faux-les-Tombes area (Condroz Inlier, Belgium) is documented. The Baltoscandian Spinachitina cervicornis and Conochitina rugata chitinozoan biozones are recognized, and possibly also the Fungochitina fungiformis and Tanuchitina bergstroemi zones. Correlation with the Cautley Mudstones Formation is done using the C. rugata and Bursachitina umbilicata chitinozoan biozones.