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Université de Fribourg

Paléoécologie et paléoclimats de la molasse du Jura (oligo-miocène) : apport des Rhinocerotoidea (Mammalia) et des minéraux argileux

Becker, Damien ; Berger, Jean-Pierre (Dir.)

Thèse de doctorat : Université de Fribourg, 2003 ; no 1416.

The Jura Molasse, in which most remains of the studied Rhinocerotoidea remains were found, constitutes a well preserved distal part of the Molasse Basin. This sedimentary series covered a major part of the Jura chain during the Oligocene and Miocene. Today, it is only sporadically found trapped in valleys or preserved in karst fillings. During the Oligo-Miocene period, the Jura region was...

Université de Fribourg

Un curieux microfossile de la Molasse oligocène de Suisse occidentale et de Haute-Savoie (France) = An enigmatic microfossil from the Oligocene Molasse deposits of Western Switzerland and Haute-Savoie (France)

Berger, Jean-Pierre ; Collinson, Margaret E. ; Weidmann, Marc

In: Swiss Journal of Geosciences, 2013, vol. 106, no. 2, p. 125–133

A re-analysis and new description of the incertae sedis Calcicarpinum? fallax is presented, and its Late Oligocene age and paleobiogeographical distribution is ascertained. It is identified as a nutlet of a Boraginaceae and is named Boraginocarpus fallax (Taugourdeau-Lantz & Rosset 1966) comb. nov.

Université de Fribourg

Paléontologie, paléoécologie et évolution des faciès récifaux de l'Oxfordien Moyen-Supérieur (Jura suisse et français)

Dupraz, Christophe ; Strasser, Andreas (Dir.) ; Berger, Jean-Pierre (Codir.)

Thèse de doctorat : Université de Fribourg, 1999 ; no 1257.

The goal of this study was to determine the factors controlling the settlement and the growth of the coral-dominated reefs in the Oxfordian of the Swiss Jura Mountains, and to analyse how eustatic, climatic and trophic variations are recorded. These reefs developed on a relatively wide and very shallow sub-tropical platform, influenced by periodic siliciclastic input. The coral composition is...

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

Large mammals from Rickenbach (Switzerland, reference locality MP29, Late Oligocene): biostratigraphic and palaeoenvironmental implications

Mennecart, Bastien ; Scherler, Laureline ; Hiard, Florent ; Becker, Damien ; Berger, Jean-Pierre

In: Swiss Journal of Palaeontology, 2012, vol. 131, no. 1, p. 161-181

Since the first exploitation of the Huppersandstones quarry of Rickenbach (Canton Solothurn, Switzerland) in 1898, many fossils of plants, molluscs, and vertebrates have been discovered. The study of the small mammals brought this locality to international recognition as the type locality for the European mammalian reference level MP29 (latest Oligocene). Our study reviews the terrestrial...