Université de Fribourg

The position of the Rupelian/Chattian boundary in the southern Upper Rhine Graben based on new records of microfossils

Pirkenseer, Claudius ; Berger, Jean-Pierre ; Reichenbacher, Bettina

In: Swiss Journal of Geosciences, 2013, vol. 106, no. 2, p. 291–301

This study analyses the regressive phase of the marine Froidefontaine Subgroup and the subsequent fluvio-lacustrine Niederroedern formation in the southern Upper Rhine Graben during the Late Rupelian and the position of the Rupelian/Chattian boundary. The study is based on the sedimentary record and several microfossil groups from two boreholes, with a focus on new records of fish otoliths,...

Université de Fribourg

Iberomeryx minor (Mammalia, Artiodactyla) from the Early Oligocene of Soulce (Canton Jura, NW Switzerland): systematics and palaeodiet

Mennecart, Bastien ; Becker, Damien ; Berger, Jean-Pierre

In: Swiss Journal of Geosciences, 2011, vol. 104, no. Suppl. 1, p. 115-132

The primitive ruminant genus Iberomeryx is poorly documented, as it is essentially only known from rare occurrences of dental remains. Therefore, the phylogeny and palaeobiology of Iberomeryx remain rather enigmatic. Only two species have been described: the type species I. parvus from the Benara locality in Georgia, and the Western European species I. minor reported from France, Spain, and...