Inferencias sobre la dieta de los dinosaurios fitófagos del Cretácico superior de la isla de Ibero-Armorica
DOI:
https://doi.org/10.66737/ier.zub.86Palabras clave:
Microwear, Titanosauria, Lambeosaurinae, Maastrichtian, EuropeResumen
This study presents the preliminary results of an active investigation on the diets and ecological dynamics of the main groups of megaherbivorous dinosaurs (Lambeosaurinae, Titanosauria) of the Upper Cretaceous of what was the island of Ibero-Armorica (SW of Europe). The chewing mechanics and dietary preferences of different dinosaurs from the Spanish and French Pyrenees have been interpreted by characterizing a sample of teeth and comparing their microwear. The results of this analysis show that lambeosaurines from the Basturs Poble and L’Espinau sites share similar dietary preferences and processing methods, being generalists and feeding at low altitudes on relatively tender vegetation. Conversely, the French lambeosaurine Canardia garonnensis would selectively feed on harder vegetation. The titanosaur of Els Nerets would be a generalist that would feed on tender vegetation at a medium-high height. These results indicate a potential partition of the ecological niche and the co-existence between both groups during the Lower Maastrichtian.
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