Bibliothèque cantonale jurassienne

Vertébrés mésozoïques : poissons

Leuzinger, Léa ; Billon-Bruyat, Jean-Paul ; Püntener, Christian

Porrentruy : Office de la culture, Paléontologie A16, 2017

(Catalogues du patrimoine paléontologique jurassien – A16)

ISBN: 9782884360432

Université de Fribourg

Stable isotope study of a new chondrichthyan fauna (Kimmeridgian, Porrentruy, Swiss Jura): an unusual freshwater-influenced isotopic composition for the hybodont shark Asteracanthus

Leuzinger, Léa ; Kocsis, L. ; Billon-Bruyat, Jean-Paul ; Spezzaferri, Silvia ; Vennemann, T.

In: Biogeosciences, 2016, vol. 12, no. 23, p. 6945–6954

Chondrichthyan teeth (sharks, rays, and chimaeras) are mineralized in isotopic equilibrium with the surrounding water, and parameters such as water temperature and salinity can be inferred from the oxygen isotopic composition (δ18Op) of their bioapatite. We analysed a new chondrichthyan assemblage, as well as teeth from bony fish (Pycnodontiformes). All specimens are from Kimmeridgian coastal...