Université de Fribourg

Enigmatic dinosaur precursors bridge the gap to the origin of Pterosauria

Ezcurra, Martín D. ; Nesbitt, Sterling J. ; Bronzati, Mario ; Vecchia, Fabio Marco Dalla ; Agnolin, Federico L. ; Benson, Roger B. J. ; Egli, Federico Brissón ; Cabreira, Sergio F. ; Evers, Serjoscha W. ; Gentil, Adriel R. ; Irmis, Randall B. ; Martinelli, Agustín G. ; Novas, Fernando E. ; Silva, Lúcio Roberto da ; Smith, Nathan D. ; Stocker, Michelle R. ; Turner, Alan H. ; Langer, Max C.

In: Nature, 2020, vol. 588, no. 2020-7838, p. 445–449

Pterosaurs were the first vertebrates to evolve powered flight1 and comprised one of the main evolutionary radiations in terrestrial ecosystems of the Mesozoic era (approximately 252–66 million years ago), but their origin has remained an unresolved enigma in palaeontology since the nineteenth century2,3,4. These flying reptiles have been hypothesized to be the close relatives of a wide...

Université de Fribourg

El trabajo de reescritura : la presencia de la Estoria de España en las Sumas de historia troyana a través del relato de Dido y Eneas y el de las aventuras de Hércules en España

Pereira, Ruben

In: Estudios de literatura medieval. 25 años de la AHLM, 2012, p. 751-761

The Sumas de historia troyana present some episodes taken directly from the Estoria de España by Alfonso X. The story based on Dido and Aeneas as well as the one that narrates Hercules’ adventures in Spain stand out. This paper discusses the evolution of these two chapters and concludes that Leomarte’s work is not a mere transcription. On the contrary, it is a rewriting most probably...

Bibliothèque cantonale jurassienne

Sauropod dinosaur phylogeny : critics and cladistic analysis

Wilson, Jeffrey A.

In: Zoological journal of the Linnean Society, 2002, vol. 136, p. 217