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Université de Fribourg

A review of the fossil record of turtles of the clade Thalassochelydia

Anquetin, Jérémy ; Püntener, Christian ; Joyce, Walter G.

In: Bulletin of the Peabody Museum of Natural History, 2017, vol. 58, no. 2, p. 317–369

The Late Jurassic (Oxfordian to Tithonian) fossil record of Europe and South America has yielded a particularly rich assemblage of aquatic pan-cryptodiran turtles that are herein tentatively hypothesized to form a monophyletic group named Thalassochelydia. Thalassochelydians were traditionally referred to three families, Eurysternidae, Plesiochelyidae, and Thalassemydidae, but the current...

Université de Fribourg

Electronic fine structure calculation of metal complexes with three-open-shell s, d, and p configurations

Ramanantoanina, Harry ; Daul, Claude

In: Journal of Molecular Modeling, 2017, vol. 23, no. 8, p. 243

The ligand field density functional theory (LFDFT) algorithm is extended to treat the electronic structure and properties of systems with three-open-shell electron configurations, exemplified in this work by the calculation of the core and semi-core 1s, 2s, and 3s one-electron excitations in compounds containing transition metal ions. The work presents a model to non-empirically resolve the...

Université de Fribourg

The comparative osteology of Plesiochelys bigleri n. sp., a new coastal marine turtle from the Late Jurassic of Porrentruy (Switzerland)

Püntener​, Christian ; Anquetin, Jérémy ; Billon-Bruyat, Jean-Paul

In: PeerJ, 2017, vol. 5, p. e3482

During the Late Jurassic, several groups of eucryptodiran turtles inhabited the shallow epicontinental seas of Western Europe. Plesiochelyidae are an important part of this first radiation of crown-group turtles into coastal marine ecosystems. Fossils of Plesiochelyidae occur in many European localities, and are especially abundant in the Kimmeridgian layers of the Swiss Jura Mountains (Solothurn...