Yuesthonyx is an extinct monotypic genus of yuesthonychid tillodont that lived in what is now East Asia from the Selandian stage of the Palaeocene epoch to the Ypresian stage of the Eocene epoch.
Distribution Yuesthonyx tingae is known from the Palaeocene Dazhang Formation of China. Remains of the genus undiagnostic to the species level are known from the Eocene Wutu Formation.
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