Latest Maastrichtian middle- and high-latitude mosasaurs and fish isotopic composition: carbon source, thermoregulation strategy, and thermal latitudinal gradient

• Published in: Paleobiology
• Main Authors: Leuzinger, Léa Sylvia, Kocsis, László, Luz, Zoneibe, Vennemann, Torsten Walter, Ulyanov, Alexey, Fernández, Marta Susana
• Format: Article in Journal/Newspaper
• Language: English
• Published: Paleontological Society
• Subjects: Mosasaurs fish; High latitude; Maastrichtian; Cretaceous; https://purl.org/becyt/ford/1.5; https://purl.org/becyt/ford/1; Argentina; Argentine; Pablo; Patagonia; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/11336/217816

Here we report high-latitude stable isotope compositions of Maastrichtian fossil fish and marine reptiles (mainly mosasaurs) from Antarctica (64°S paleolatitude) and compare them with mid-paleolatitude samples from Argentine Patagonia (45°S). Disparities between the δ13C values of bony fish and mari...