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Université de Fribourg

Feeding biomechanics suggests progressive correlation of skull architecture and neck evolution in turtles

Ferreira, Gabriel S. ; Lautenschlager, Stephan ; Evers, Serjoscha W. ; Pfaff, Cathrin ; Kriwet, Jürgen ; Raselli, Irena ; Werneburg, Ingmar

In: Scientific Reports, 2020, vol. 10, p. 5505

The origin of turtles is one of the most long-lasting debates in evolutionary research. During their evolution, a series of modifications changed their relatively kinetic and anapsid skull into an elongated akinetic structure with a unique pulley system redirecting jaw adductor musculature. These modifications were thought to be strongly correlated to functional adaptations, especially to bite...

Université de Fribourg

Inference of evolutionary jumps in large phylogenies using Lévy processes

Duchen, Pablo ; Leuenberger, Christoph ; Szilágyi, Sándor M. ; Harmon, Luke ; Eastman, Jonathan ; Schweizer, Manuel ; Wegmann, Daniel

In: Systematic Biology, 2017, p. -

Although it is now widely accepted that the rate of phenotypic evolution may not necessarily be constant across large phylogenies, the frequency and phylogenetic position of periods of rapid evolution remain unclear. In his highly influential view of evolution, G. G. Simpson supposed that such evolutionary jumps occur when organisms transition into so-called new adaptive zones, for instance...

Consortium of Swiss Academic Libraries

The effect of treatment of skeletal open bite with two types of bite-blocks

Kuster, Robert ; Ingervall, Bengt

In: The European Journal of Orthodontics, 1992, vol. 14, no. 6, p. 489-499

Consortium of Swiss Academic Libraries

I.—On Hyperodapedon Gordoni

Burckhardt, Rudolf

In: Geological Magazine, 1900, vol. 7, no. 12, p. 529-535

Université de Fribourg

New insights into the lifestyle of Allosaurus (Dinosauria: Theropoda) based on another specimen with multiple pathologies

Foth​, Christian ; Evers, Serjoscha W. ; Pabst, Ben ; Mateus, Octávio ; Flisch, Alexander ; Patthey, Mike ; Rauhut, Oliver W.M.

In: PeerJ, 2015, vol. 3, p. e940

Adult large-bodied theropods are often found with numerous pathologies. A large, almost complete, probably adult Allosaurus specimen from the Howe Stephens Quarry, Morrison Formation (Late Kimmeridgian–Early Tithonian), Wyoming, exhibits multiple pathologies. Pathologic bones include the left dentary, two cervical vertebrae, one cervical and several dorsal ribs, the left scapula, the left...

Bibliothèque cantonale jurassienne

A new basal ornithopod dinosaur from the Upper Cretaceous of South Korea

Huh, Min

In: Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen, 2010, vol. 259, no. 1, p. 1-24

Université de Fribourg

Parallel adaptations to nectarivory in parrots, key innovations and the diversification of the Loriinae

Schweizer, Manuel ; Güntert, Marcel ; Seehausen, Ole ; Leuenberger, Christoph ; Hertwig, Stefan T.

In: Ecology and Evolution, 2014, vol. 4, no. 14, p. 2867–2883

Specialization to nectarivory is associated with radiations within different bird groups, including parrots. One of them, the Australasian lories, were shown to be unexpectedly species rich. Their shift to nectarivory may have created an ecological opportunity promoting species proliferation. Several morphological specializations of the feeding tract to nectarivory have been described for...

Bibliothèque cantonale jurassienne

Wood-fall associations from Late Cretaceous deep-water sediments of Hokkaido, Japan

Kiel, Steffen

In: Lethaia : an international journal of palaeontology and stratigraphy, 2009, vol. 42, p. 74-82