Université de Fribourg

A Review of the fossil record of turtles of the clade Baenidae

Joyce, Walter G. ; Lyson, Tyler R.

In: Bulletin of the Peabody Museum of Natural History, 2015, vol. 56, no. 2, p. 147–183

The fossil record of the turtle clade Baenidae ranges from the Early Cretaceous (Aptian—Albian) to the Eocene. The group is present throughout North America during the Early Cretaceous, but is restricted to the western portions of the continents in the Late Cretaceous and Paleogene. No credible remains of the clade have been reported outside of North America to date. Baenids were warmadapted...

Université de Fribourg

A Review of the Fossil Record of Turtles of the Clades Platychelyidae and Dortokidae

Cadena, Edwin ; Joyce, Walter G.

In: Bulletin of the Peabody Museum of Natural History, 2015, vol. 56, no. 1, p. 3–20

The fossil record of platychelyid turtles expands from the Late Jurassic (Oxfordian) of Cuba to the Early Cretaceous (Valanginian) of Colombia. Platychelyids were adapted to freshwater to coastal environments. Current phylogenies confidently suggest that platychelyids are situated along the stem lineage of crown Pleurodira. A taxonomic review of the group concludes that of six named...

Université de Fribourg

A review of the fossil record of turtles of the clade Pan-Carettochelys

Joyce, Walter G.

In: Bulletin of the Peabody Museum of Natural History, 2014, vol. 55, no. 1, p. 3–33

Turtles of the total clade Pan-Carettochelys have a relatively poor fossil record that extends from the Early Cretaceous. The clade is only found in Asia during the Cretaceous, but spreads to Europe and North America during the Eocene. Neogene finds are restricted to Europe, Africa and Australia, whereas the only surviving species, Carettochelys insculpta, lives in New Guinea and the Northern...

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

Im distalsten Teil des schweizerischen Molasse-Beckens und in der Südverlängerung des Rheingrabens befinden sich die Konglomeratablagerungen der stratigraphischen Gruppe Gompholithes & Conglomérats, die hier einer sedimentologischen und paläontologischen detaillierten Studie unterzogen werden. Die zahlreichen Aufschlüsse, die beim Bau der Autobahn Transjurane in der Region von Porrentruy...