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    Université de Fribourg

    Neuroanatomy of the spinosaurid Irritator challengeri (Dinosauria: Theropoda) indicates potential adaptations for piscivory

    Schade, Marco ; Rauhut, Oliver W. M. ; Evers, Serjoscha W.

    In: Scientific Reports, 2020, vol. 10, no. 1, p. 9259

    Spinosauridae, a theropod group characterized by elongated snouts, conical teeth, enlarged forelimbs, and often elongated neural spines, show evidence for semiaquatic adaptations and piscivory. It is currently debated if these animals represent terrestrial carnivores with adaptations for a piscivorous diet, or if they largely lived and foraged in aquatic habitats. The holotype of Irritator...

    Université de Fribourg

    Notes on the cheek region of the Late Jurassic theropod dinosaur Allosaurus

    Evers, Serjoscha W. ; Foth, Christian ; Rauhut, Oliver W.M.

    In: PeerJ, 2020, vol. 8, p. e8493

    Allosaurus, from the Late Jurassic of North America and Europe, is a model taxon for Jurassic basal tetanuran theropod dinosaurs. It has achieved an almost iconic status due to its early discovery in the late, 19th century, and due to the abundance of material from the Morrison Formation of the western U.S.A., making Allosaurus one of the best-known theropod taxa. Despite this, various...

    Université de Fribourg

    Late Jurassic theropod dinosaur bones from the Langenberg Quarry (Lower Saxony, Germany) provide evidence for several theropod lineages in the central European archipelago

    Evers, Serjoscha W. ; Wings, Oliver

    In: PeerJ, 2020, vol. 8, p. e8437

    Marine limestones and marls in the Langenberg Quarry provide unique insights into a Late Jurassic island ecosystem in central Europe. The beds yield a varied assemblage of terrestrial vertebrates including extremely rare bones of theropod from theropod dinosaurs, which we describe here for the first time. All of the theropod bones belong to relatively small individuals but represent a wide...

    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...