Yu et al. 2020 bring us
a mostly complete and articulated 3D skull of a new neoceratopsian, Beg tse (Fig. 1; Mid- Cretaceous, Mongolia). Here some restoration, based on comparison to a phylogenetic sister Auroraceratops (Fig. 2), helps us understand the extent of the missing parts of this neoceratopsian.
Yu et al. considered
Beg tse the most basal neoceratopsian currently known. That does not quite agree with the results recovered by the LRT (subset Fig. 3). Other taxa (Leptoceratops (Fig. 4), Auroraceratops) also nest in this node.
Since Stenopelix (Fig. 5) is almost quadrupedal,
phylogenetic bracketing indicates that Beg tse and Aurorceratops were likely bipeds, like Psittacosaurus (Fig. 5) and Leptoceratops (Fig. 4).
Yu C, Prieto-Marquez A, Chinzorig T, Badamkhatan Z and Norell M 2020. A neoceratopsian dinosaur from the early Cretaceous of Mongolia and the early evolution of ceratopsia. Nature Communications Biology 3:499 | https://doi.org/10.1038/s42003-020-01222-7 http://www.nature.com/commsbio