##plugins.themes.bootstrap3.article.main##

Zulma Gasparini Marcelo de la Fuente Marta Fernández Paula Bona

Resumen

Toward the end of the Cretaceous the Atlantic Ocean covered parts of central-western Patagonia forming a wide archipelago. Remains of terrestrial and marine reptiles have been recorded in the Campanian and Maastrichtian of this area in rocks that represent coastal or marginal marine environments. These taphocenoses are especially interesting because they include taxa not only of different environmental requirements, but also of different biogeographical backgrounds. The presence of a wide archipelago is a plausible explanation of the association recorder, such as plesiosaurs with continental chelids, boids and dinosaurs (e.g., La Colonia, Chubut; Ranquil-Có, Mendoza), or plesiosaurs and mosasaurs with chelids (e.g., Lui-Malal, Mendoza). From a paleobiogeographic point of view, some taxa have mainly south Gondwanan distribution (chelids, meiolanids, the plesiosaur Aristonectes Cabrera), others taxa are related to North American taxa (the plesiosaur Sulcusuchus Gasparini and Spalletti, hadrosaurid dinosaurs); and still others were cosmopolitan toward the end of the Mesozoic (elasmosaurids and mosasaurines).KEY WORDS. Reptiles. Coastal environments. Late Cretaceous. Patagonia.

##plugins.themes.bootstrap3.article.details##

Sección
Volumen Temático
Derechos de autor
Creative Commons License
Esta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial 4.0.

Los autores conservan los derechos de autor y garantizan a la revista el derecho de ser la primera publicación del trabajo licenciado bajo una licencia CC Attribution-NonCommercial 4.0 que permite a otros compartir el trabajo con el reconocimiento de la autoría y de la publicación inicial en esta revista.