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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...

Université de Fribourg

Reworked microfossils as a paleogeographic tool

Pirkenseer, Claudius ; Spezzaferri, Silvia ; Berger, Jean-Pierre

In: Geology, 2011, vol. 39, no. 9, p. 843-846

The abundant occurrence of reworked microfossils within the paleogeographically restricted Upper Rhine Graben of central Europe represents a unique opportunity to investigate their inherent information, allowing new insights into the paleogeographic framework and past sedimentary pathways. In the late Rupelian and early Chattian a transgression-regression cycle linked to the global Ru2–Ru3...

Université de Fribourg

Faunal evidence of a holocene pluvial phase in southern Arabia with remarks on the morphological variability of Helenina anderseni

Gennari, Giordana ; Rosenberg, Thomas ; Spezzaferri, Silvia ; Berger, Jean-Pierre ; Fleitmann, Dominik ; Preusser, Frank ; Al-Shanti, Mahmoud ; Matter, Albert

In: The Journal of Foraminiferal Research, 2011, vol. 41, no. 3, p. 248-259

Although foraminifera have been found living in inland saline lakes isolated from the sea, this phenomenon has rarely been recognized in the fossil record. This study documents the occurrence of benthic foraminifera in Holocene lake sediments located nearly 500 km inland from the Red Sea, in the Al-Mundafan region of southern Saudi Arabia. The lake formed during a regional pluvial period,...

Université de Fribourg

Tapiridae (Perissodactyla, Mammalia) of the Swiss Molasse Basin during the Oligocene-Miocene transition

Scherler, Laureline ; Becker, Damien ; Berger, Jean-Pierre

In: Journal of Vertebrate Paleontology, 2011, vol. 31, no. 2, p. 479—496

The Tapiridae of the Swiss Molasse Basin from the late Oligocene to the early Miocene are reviewed. Fossil remains that have not previously been described are identified, old descriptions and identifications from previous works are reassessed, and specimens from Switzerland and France are compared, specifically Protapirus bavaricus from Ebnat-Kappel (MP28) and Rüfi bei Schänis (MP29),...

Université de Fribourg

New skeleton from the early Oligocene of Germany indicates a stem-group position of diomedeoidid birds

De Pietri, Vanesa L. ; Berger, Jean-Pierre ; Pirkenseer, Claudius ; Scherler, Laureline ; Mayr, Gerald

In: Acta Palaeontologica Polonica, 2010, vol. 55, no. 1, p. 23-34

We report a new specimen of the extinct procellariiform species Diomedeoides brodkorbi (Aves, Diomedeoididae) from the early Oligocene (Rupelian) of Rheinweiler in southwestern Germany. The well−preserved partial skeleton allows the recognition and reassessment of new osteological details that bear on the phylogenetic affinities of diomedeoidids. The presence on the coracoid of a deeply...

Université de Fribourg

Sédimentologie et paléontologie des paléoenvironnements côtiers rupéliens de la Molasse marine rhénane dans le Jura suisse

Picot, Laurent ; Becker, Damien ; Cavin, Lionel ; Pirkenseer, Claudius ; Lapaire, Frédéric ; Rauber, Gaëtan ; Hochuli, Peter A. ; Spezzaferri, Silvia ; Berger, Jean-Pierre

In: Swiss Journal of Geosciences, 2008, vol. 101, no. 2, p. 483-513

Les dépôts oligocènes marins, situés dans la partie distale du bassin molassique suisse et dans le prolongement sud du fossé rhénan, sont constitués par les groupes stratigraphiques suivants: les Conglomérats de Porrentruy, le Septarienton et le Meeressand. Cette série sédimentaire a fait l’objet d’études stratigraphiques, sédimentologiques et paléontologiques détaillées. Trois...

Université de Fribourg

Sédimentologie, paléontologie et paléoenvironnements côtiers de la région de Porrentruy (Sud-Rhénan, Paléogène, Jura, Suisse): implications géodynamiques

Picot, Laurent ; Becker, Damien ; Lapaire, Frédéric ; Ustaszewski, Kamil ; Hug, Wolfgang A. ; Berger, Jean-Pierre

In: Eclogae Geologicae Helvetiae, 2005, vol. 98, no. 2, p. 281-296

Situés dans la partie la plus distale du bassin molassique suisse et dans le prolongement sud du fossé rhénan, les dépôts conglomératiques appartenant au groupe stratigraphique des Gompholithes & Conglomérats ont fait l’objet d’une étude sédimentologique et paléontologique détaillée. La multitude des affleurements réalisés lors des travaux de construction de l’autoroute...