A symphyseal region of the fused dentaries of a caenagnathid theropod is reported from the Nemegt Formation in Mongolia.

This represents the first caenagnathid dentaries found from the upper Campanian to Maastrichtian in Asia, in which caenagnathids have rarely been described.

The Nemegt Formation is unique for its diverse oviraptorosaurian fauna including both oviraptorids and caenagnathids. Hypothesized coexistence of eolian and fluvial environments during the deposition of this formation might explain such co-occurrence of the two clades of oviraptorosaurians.