The holotype, IVPP V6728, was recovered from a layer of the lower Shaximiao Formation dating from the Bathonian-Callovian. It consists of a partial skeleton. It contains a relatively complete skull, three neck vertebrae, three back vertebrae, four sacral vertebrae, twenty tail vertebrae, two metatarsals, three phalanges, three plates, a spike and three further osteoderms. Several specimens were referred: ZDM T7001: a more complete skeleton containing a skull, eight cervicals, sixteen dorsals, four sacrals, thirty-five caudals, a complete shoulder girdle, a left humerus, both ilia, a left pubic bone, both ischia, three metatarsals, three phalanges and eleven plates; ZDM T7002: vertebrae; ZDM T7003: vertebrae and a pelvis; ZDM T7004: caudal vertebrae; CV 720: a skull, twenty-eight vertebrae and twenty plates; and CV 721: seven vertebrae.