[N] 2007 Basal titanosauriform teeth from Yixian
Barrett, P.M. & Wang, X-L. (2007) Basal titanosauriform (Dinosauria, Sauropoda) teeth from the Lower Cretraceous Yixian Formation of Liaoning Province, China ScienceDirect Paleoworld
Abstract: The Yixian Formation of Liaoning Province, People’s Republic of China has yielded a diverse fauna of non-avian dinosaurs, but is dominated by small-bodied taxa. Here, we describe a series of isolated teeth from the Lujiatun Beds of the formation that are referable to a basal titanosauriform sauropod. Some of the teeth possess a distinctive circular boss on the lingual surface, which suggests that they are referable to cf. Euhelopus sp. This identification provides some additional support for biostratigraphical correlations between the Jehol Group and the Mengyin Formation of Shandong Province that suggest an Early Cretaceous age for the latter unit. Moreover, the titanosauriform affinities of the teeth provide further evidence for the dominance of this sauropod clade in eastern Asia during the Cretaceous.